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ISRO Launches X-Ray Polarimeter Satellite From First Launch-Pad, SDSC-SHAR In Sriharikota

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Sriharikota: India Began 2024 with PSLV rocket lifting off with XPoSat Sriharikota (Andhra Pradesh). On the first day of the calendar year 2024, India’s Polar Satellite Launch Vehicle-C58 (PSLV-C58) on Monday morning lifted off with the country’s X-ray Polarimeter Satellite (XPoSat) with 10 other payloads.

The 44.4-metre tall PSLV-C58 rocket with a lift off mass of 260 ton carrying XPoSat and 10 other experimental payloads on its fourth stage blasted off from the first launch pad at the Satish Dhawan Space Centre (SDSC) here at 9.10 a.m. Slowly rising up towards the skies with a thick orange flame at its tail, the rocket gained speed with a sound resembling rolling thunder and went up and up leaving a thick plume while the people assembled at the viewing gallery clapped their hands with pride. Interestingly, this is the first space mission for ISRO on January 1 for the Indian Space Research Organisation (ISRO).

Procedure after 21 minutes into flight of rocket

At about 21 minutes into its flight, the rocket will orbit XPoSat at an altitude of about 650 km. Subsequently, the rocket’s fourth stage will be restarted twice to reduce the orbit into a 350 km circular orbit to maintain in 3-axis stabilised mode for Orbital Platform (OP) experiments.

The PSLV Orbital Experimental Module-3 (POEM-3) experiment will be executed, meeting the objective of 10 identified payloads, supplied by the ISRO and the Indian National Space Promotion and Authorisation Centre (IN-SPACe), the Indian space agency said.

In its normal configuration, the PSLV is a four-stage/engine expendable rocket powered by solid and liquid fuels, alternatively, with six booster motors strapped onto the first stage to give higher thrust during the initial flight moments.

ISRO’s five types of rockets

The ISRO has five types of PSLV rockets — Standard, Core Alone, XL, DL, and QL. The major difference between them is the use of strap-on boosters which, in turn, largely depends on the weight of the satellites to be orbited.

The PSLV uses 6,4,2 solid rocket strap-on motors to augment the thrust provided by the first stage in PSLV-XL, QL & DL variants, respectively. However, strap-ons are not used in the core-alone version (PSLV-CA). The XPoSat is the first dedicated scientific satellite from the ISRO to carry out research in space-based polarisation measurements of X-ray emission from celestial sources. The satellite configuration is modified from the IMS-2 bus platform.

Three objectives of XPoSat

The configuration of the mainframe systems is derived based on the heritage of IRS satellites. It carries two payloads, namely POLIX (Polarimeter Instrument in X-rays) and XSPECT (X-ray Spectroscopy and Timing). The POLIX is realised by the Raman Research Institute and XSPECT is by the Space Astronomy Group of the U.R. Rao Satellite Centre (URSC).

According to the ISRO, the three objectives of XPoSat are: (a) To measure polarisation of X-rays in the energy band 8-30keV emanating from about 50 potential cosmic sources through Thomson Scattering by POLIX payload. (b) To carry out long-term spectral and temporal studies of cosmic X-ray sources in the energy band 0.8-15keV by XSPECT payload and (c) To carry out polarisation and spectroscopic measurements of X-ray emissions from cosmic sources by POLIX and XSPECT payloads, respectively, in the common energy band.

Passivation of PS4

After orbiting the XPoSat in 650km, the rocket’s fourth stage — PS4 stage — will be lowered to 350km, about 9.6 deg orbit, by restarting it twice. The left-out propellant in the PS4 will be disposed of through the main engines as a precursor to enabling the safety of the PS4 stage in atmosphere re-entry experiments planned in future. The oxidiser will be let out first followed by fuel in a predetermined sequence of operations. The existing scheme of spent stage passivation by venting the tank pressure will also be active.

Post passivation of PS4, the control of the stage is transferred to the POEM Avionics, the ISRO added. The POEM is configured as a 3-axis stabilised orbital platform for conducting experiments to space qualify systems with novel ideas. The PS4 Stage Orbital Platform Electrical power requirements are catered by a Flexible Solar Panel in conjunction with 50Ah Li-Ion battery in battery tied configuration.

Navigation process

The orbital platform consists of avionic systems to take care of navigation, guidance, control and telecommands and Orbital Platform Attitude Control System to cater to control of the platform to test the payloads, the ISRO said. The 10 payloads are from Take Me 2 Space, LBS Institute Technology for Women, K J Somaiya Institute of Technology, Inspecity Space Labs Private Ltd, Dhruva Space Private Ltd, Bellatrix Aerospace Private Ltd (two payloads) and three payloads from the ISRO.

Crime

NCB crackdown forces Myanmar drug cartels into forests and river routes

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New Delhi, July 23: The Guwahati and Imphal zonal units of the Narcotics Control Bureau (NCB) have stepped up operations against narcotics cartels operating out of Myanmar.

India is battling narcotics smuggling on multiple fronts, with drug cartels operating out of Myanmar emerging as a major security concern. While the Guwahati and Imphal zonal units of the NCB have made several major seizures in 2025 and 2026, enforcement agencies have observed a shift in the smuggling methods and operational patterns adopted by these networks.

As law enforcement agencies tighten the noose around drug cartels operating between Myanmar and India, the traditional routes used to smuggle narcotics have begun to change.

An official said the cartels primarily smuggle heroin and methamphetamine into India. “Earlier, when surveillance and scrutiny were less stringent, traffickers used conventional routes and operated with relative ease. However, they have now shifted to dense forests and riverine stretches to evade detection,” the official said.

While enforcement agencies are working to dismantle these smuggling routes, the task remains challenging because of the difficult terrain along the India-Myanmar border. According to officials, traffickers typically move consignments under the cover of darkness, making detection far more difficult. They also exploit adverse weather conditions, including heavy rain, knowing that surveillance and movement by security personnel are often affected during such periods, an official said.

An Intelligence Bureau official said that the supply chain is a complex one. Multiple layers are involved, which makes detection and investigation tricky. These Myanmar-based cartels have their supply chains leading to Assam and Manipur.

After the drugs originate from Myanmar, they get passed on to the cross-border couriers. “These traffickers are assisted by the transport coordinators, following which it reaches the local facilitators, who then get in touch with the receivers of the consignment, who then supply it into the market,” the IB official said.

Further, there is another chain which involves the finances. Those who handle the illicit finances are random people who are not usually under the radar of any agency. Their job is to collect the money from the consignment receivers and then route it back to the cartels using several illicit channels.

“As compared to the narcotic smuggling that one witnesses along the India-Pakistan border in Punjab, this one is a much more complex one,” said an official.

In Punjab, Pakistan-based smugglers now rely largely on drones to drop contraband across the border, reflecting a more technology-driven method of trafficking. In contrast, drug cartels operating out of Myanmar continue to depend primarily on human couriers and traditional smuggling networks, with comparatively limited use of technology.

Another official said that the use of such complex terrains and networks makes the job of the agencies much harder. Multiple layers need to be monitored, and since it is a well-oiled mechanism, it would take some time before a complete crackdown takes place, the official also explained.

The recent arrest of Nengzatuan, alias Tuanpi, a resident of Haichin in Myanmar’s Chin State, has given a significant boost to the NCB’s operations. Wanted in multiple narcotics cases, Tuanpi was arrested in Manipur. Investigators believe his interrogation will provide valuable insights into the logistics network used by Myanmar-based drug cartels and help agencies dismantle their supply chain.

The arrested person is not a small-time operative, and he was one of the main international suppliers, who was operating out of Chin State. His questioning is crucial, and the details he would provide to the NCB will help the agency break down the supply chains from Myanmar into India better.

An official said Tuanpi is expected to provide crucial information on the smuggling routes and logistics network used by the cartels. The intelligence gathered from his interrogation is likely to strengthen efforts to curb the flow of narcotics into India and also shed light on how drugs trafficked into the country are subsequently routed to international markets, the official added.

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Crime

Father, grandfather held for killing 2-month-old girl, burying body in forest in Bengal

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Kolkata, July 23: A father and grandfather have been arrested in West Bengal’s North 24 Parganas district for allegedly killing a two-month-old girl and burying her in a forested area, police said on Thursday.

The incident was reported from the Jagatdal area, where the infant’s body was later exhumed and sent for post-mortem examination at Barrackpore Sub-Divisional Hospital.

According to police, the accused have been identified as Apurba Banerjee, the child’s father, and Vikas Banerjee, her grandfather. Investigators said the family had allegedly been expecting a male child and were unhappy after the birth of a second daughter. They did not even visit the hospital to see the mother and the child.

Police said the infant, who was around two months old, had reportedly been unwell for the past few days. However, on Wednesday, allegations surfaced that the child had been killed and secretly buried in a nearby forest area.

Following a complaint and protests by local residents, police reached the spot and took the two accused to the location where the body had allegedly been buried. Acting on information provided by them, officers exhumed the body and sent it for autopsy. Both men were subsequently arrested and booked under relevant sections of law.

Local residents expressed suspicion over the circumstances surrounding the child’s death. One neighbour told local media that while the family claimed the infant had died naturally, questions were raised over the hurried burial without informing neighbours or authorities.

Neighbour Chandrani Mondal said, “In the morning, we received news that the baby girl was killed and buried in the ground by her father and grandfather. We went to find out about the matter. But they told us that the baby girl died naturally. If that is what happened, why did the family members bury her in the ground so quickly without informing anyone? We want the police to investigate the incident.”

Sampati Banerjee, the mother of the deceased baby girl, said, “My daughter was sick for two or three days. When I woke up this morning, I saw that her body was cold. She was not breathing. I wanted to take my daughter to the hospital. But my husband and father-in-law did not agree. They quickly took the dead girl from my lap and buried her in the forest next to the house.”

Police said the exact cause of death would be determined after the post-mortem report is received, and further investigation is underway.

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Crime

CBI finds no evidence linking Sanjeev Mukhiya to NEET-UG 2024 paper theft case

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New Delhi, July 23: The Central Bureau of Investigation (CBI), which probed the NEET (UG) 2024 question paper theft case, has said it found no evidence to establish the involvement of Sanjeev Kumar, alias Sanjeev Mukhiya, in the crime.

After conducting a detailed investigation, the agency said it had identified the entire conspiracy and all those involved.

“Sanjeev Mukhiya had remained absconding during the relevant period and was subsequently arrested by Bihar Police in connection with other cases. Since he was a named accused in the FIR registered in the NEET-UG 2024 case, the CBI took him into police custody for examination in the matter,” the agency said in a statement.

“However, no evidence of his involvement in the NEET-UG 2024 case emerged during the investigation. Consequently, the CBI did not file any charge sheet against him in the case, and he subsequently secured bail,” it added.

The agency clarified that Mukhiya continued to remain in judicial custody even after obtaining bail in the CBI case, as he is an accused in other cases being investigated by Bihar Police.

The CBI said it had carried out a comprehensive investigation into the NEET (UG) 2024 paper theft case, identified all individuals involved, and ensured that none escaped the legal process.

The case was initially registered by Bihar Police after detecting the theft of the NEET (UG) 2024 examination question paper. At the preliminary stage, suspicion had arisen regarding Mukhiya’s possible involvement because of his alleged links to other examination paper leak cases. He was, therefore, named as an accused in the FIR.

The investigation was later transferred to the CBI.

According to the agency, the probe identified every individual involved in the theft and subsequent distribution of the stolen question paper, as well as all candidates who benefited from its use.

The CBI has filed multiple charge sheets against 45 accused before the competent court in Patna.

The agency further said that the position regarding Mukhiya’s role had already been clarified in 2024 and asserted that the current narrative suggesting his deliberate omission from the case was “factually incorrect”.

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