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PSLV-C58 XPoSat: India launches satellite to study black holes from Sriharikota

On January 1, the PSLV-C58 rocket took off at 9.10 a.m. from this spaceport’s first launch pad, which is situated around 135 kilometres east of Chennai.

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The Indian Space Research Organisation successfully launched India’s first X-Ray Polarimeter Satellite on Monday, or XPoSat, from the Satish Dhawan Space Centre in Sriharikota. The satellite is designed to provide information about celestial objects such as black holes. It was carried into space by a Polar Satellite Launch Vehicle rocket.

According to the ISRO, the PSLV-C58 rocket successfully launched payload XPoSat into Low Earth Orbit on its 60th flight.

On January 1, the PSLV-C58 rocket took off at 9.10 a.m. from this spaceport’s first launch pad, which is situated around 135 kilometres east of Chennai.

It is the first specifically designed ISRO scientific satellite to conduct studies on polarisation measurements of X-ray radiation from astronomical sources from space.

Aeronautics and Space Agency (NASA) studied supernova explosion remnants, black hole particle streams, and other cosmic occurrences in December 2021 with the Imaging X-Ray Polarimetry Explorer mission.

Although India has established space-based X-ray astronomy with an emphasis on imaging and time domain investigations, the space agency stated that Monday’s mission represents a significant contribution to the scientific community.

In order to conduct long-term spectral and temporal investigations of cosmic X-ray sources, the PSLV-C58 mission aims to measure the polarisation of X-rays in the energy band 8-30 keV emitted by about 50 possible cosmic sources.

When analysing the radiation process and geometry of astronomical sources, X-ray polarisation is an essential diagnostic tool. POLIX (Polarimeter Instrument in X-Rays), developed by the Raman Research Institute to determine polarimetry parameters, and XSPECT (X-ray Spectroscopy and Timing), constructed by the U R Rao Satellite Centre, Bengaluru, are the main payloads of XPoSat.

With the launch of its first X-Ray Polarimeter satellite, the ISRO ushered in the new year. Following the success of the Gaganyaan Test Vehicle D1 mission in October, the launch occurred.

India achieved unprecedented achievement in 2023 with the gentle landing of Chandrayaan-3 on the Moon’s south pole and the launch of Aditya-L1, the country’s first solar mission.

Following the momentous August 23 landing of Vikram Lander on the Moon, the Pragyan rover was sent out to explore the lunar south pole, which had not before been explored.

India’s current objectives include the Gaganyaan Mission, establishing Bharatiya Antariksha Station by 2035, and sending the country’s first person to the moon by 2040.

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India and Russia vow to walk together against terrorism, reaffirm strategic partnership

PM Modi and President Putin reaffirm India-Russia unity against terrorism, deepen energy and trade cooperation, and discuss peace efforts amid the Ukraine conflict.

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Prime Minister Narendra Modi and Russian President Vladimir Putin on Friday underlined that India and Russia “walk together in the fight against terrorism,” reinforcing a decades-old strategic partnership that remains steady amid global geopolitical churn. The leaders issued the joint statement following talks at Hyderabad House in Delhi, where they also announced steps to boost trade, economic cooperation, and energy collaboration.

India-Russia stand firm on counter-terror cooperation

PM Modi described President Putin as a “dear friend” and highlighted Moscow’s consistent support to India on counter-terror efforts. Russia had earlier strongly condemned the terror attack in Jammu and Kashmir’s Pahalgam, allegedly linked to Pakistan-based Jaish-e-Mohammed, and reiterated solidarity with India’s fight against terrorism in all forms.

The joint remarks emphasized that the bilateral friendship, rooted in trust and mutual respect, has remained resilient for decades despite global challenges.

Focus on energy, trade and use of national currencies

A key highlight of the engagement was Russia reaffirming “uninterrupted shipments” of fuel to India. PM Modi expressed gratitude for Russia’s commitment, noting energy cooperation as a crucial pillar of the relationship. While he did not specifically mention oil purchases, given ongoing Western pressure, he emphasised cooperation in civil nuclear and clean energy.

The two countries also discussed expanding economic ties, including a possible free trade agreement. President Putin said bilateral trade was being targeted to reach USD 100 billion, and acknowledged progress toward using national currencies for payments — a remark expected to draw global attention.

Putin shares peace plan insights on Ukraine conflict

Putin briefed the Prime Minister on Russia’s perspective for a peaceful resolution to the ongoing Ukraine war and appreciated India’s continued role as a “champion of peace.” PM Modi reiterated India’s consistent position on dialogue and diplomacy.

Agreements across jobs, health, shipping and minerals

Officials exchanged multiple agreements covering employment mobility, health, shipping, chemicals and cooperation in critical minerals — further broadening the strategic footprint of the partnership.

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RBI cuts repo rate to 5.25%, paving the way for cheaper loans

The RBI has cut the repo rate to 5.25%, aiming to support growth as inflation softens. The central bank also raised GDP projections and announced liquidity-boosting measures.

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Reserve Bank of India

The Reserve Bank of India (RBI) reduced the key repo rate by 25 basis points to 5.25% on Thursday, signalling relief for borrowers as banks are expected to offer lower EMIs on home and vehicle loans. Governor Sanjay Malhotra announced the move after the conclusion of the three-day Monetary Policy Committee (MPC) meeting.

RBI prioritises growth as inflation eases

Malhotra said the decision was unanimous, with the central bank choosing to focus on supporting economic momentum despite concerns over a weak rupee. The repo rate was earlier cut in June from 6% to 5.5% amid easing inflation trends.

The RBI now projects Consumer Price Index (CPI) inflation at 2% for FY2025-26, significantly softer than earlier estimates. For the first quarter of FY2026-27, inflation is expected at 3.9%, lower than the previous projection. The governor noted that rising precious metal prices may contribute to the headline CPI, but overall risks to inflation remain balanced.

GDP outlook strengthened

In a strong upward revision, the central bank increased the GDP forecast for the current financial year to 7.3%, previously estimated at 6.8%. Growth for the October–December quarter has also been revised to 6.7%.

The last quarter registered a six-quarter high expansion of 8.2%, reflecting resilient demand and steady credit flow.

“The growth-inflation balance continues to offer policy space,” Malhotra said, reiterating that the RBI’s stance remains neutral.

Other key decisions

Alongside the repo rate cut, the RBI announced adjustments to key policy corridors:

  • Standing Deposit Facility (SDF): 5%
  • Marginal Standing Facility (MSF): 5.5%

To improve liquidity and strengthen monetary transmission, the RBI will conduct forex swaps and purchase ₹1 lakh crore worth of government bonds through Open Market Operations (OMO).

RBI reviews a challenging year

Reflecting on 2025, Malhotra said the year delivered strong growth and moderate inflation even as global trade and geopolitical uncertainties persisted. He added that bank credit and retail lending remained healthy, providing support to the economy.

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IndiGo flight chaos deepens as over 500 services cancelled, passengers stranded for hours

Over 500 IndiGo flights were cancelled nationwide, leaving passengers stranded without food, clarity or their luggage as airports struggled to manage the disruption.

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IndiGo flight

India’s largest airline continued to face massive operational breakdowns, triggering frustration among travellers at major airports across the country. From piles of unattended suitcases to passengers waiting over 12 hours without food or clarity, the disruption stretched into its fourth consecutive day.

Long delays, no communication leave passengers anguished

Several travellers at Delhi airport described the situation as “mental torture”, as thousands of unclaimed suitcases lay scattered across the terminal. Many slept on the floor, while others expressed anger over the lack of communication from airline staff.

One flier said he had been waiting for over 12 hours without any explanation: “Every time they say one-hour or two-hour delays. We were going to a wedding but don’t even have our luggage.”

A passenger in Hyderabad recounted a similar ordeal, saying the flight was delayed indefinitely with no food, water, or updates from the airline. At the airport, some travellers blocked an Air India flight in protest over the lack of arrangements.

Goa and Chennai airports also witnessed tense moments. Videos from Goa showed fliers shouting at IndiGo staff as police attempted to calm the situation. At Chennai, CISF denied entry to IndiGo passengers due to heavy congestion.

Major metro airports impacted; cascading cancellations nationwide

Flight cancellations and delays were reported across multiple airports:

  • Over 200 flights were cancelled in Delhi
  • More than 100 each in Mumbai and Bengaluru
  • Around 90 in Hyderabad
  • Dozens more in Pune, Vishakhapatnam, Chennai and Bhopal

Pune airport stated that parking bay congestion worsened the situation, as several IndiGo aircraft remained grounded due to lack of crew. Other airlines continued operations without disruption.

Airport authorities said they had mobilised additional manpower for crowd control and passenger support.

IndiGo admits planning lapses, says more cancellations expected

The airline acknowledged a “misjudgment” in assessing crew requirements under revised night-duty norms, which it said created planning gaps. Winter weather and airport congestion further aggravated the crisis.

IndiGo informed the aviation ministry and DGCA that some regulatory changes—such as the shift in night-duty timings and a cap on night landings—have been rolled back temporarily to stabilise operations.

The airline warned that cancellations may continue for another two to three days, and from December 8, schedules will be trimmed to prevent further disruption.

In a message to employees, CEO Pieter Elbers said restoring punctuality would not be an “easy target”.

Airline issues apology amid nationwide frustration

In a late-night statement, IndiGo apologised to customers and industry partners, acknowledging the widespread inconvenience caused by the disruptions. The airline said all teams were working with authorities to bring operations back to normal.

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