First pictures of Indian modernized T-90S Bhishma MBT Main Battle Tank.

Pictures tweeted by The Dead District show Indian Army' T-90S MBTs modernized with the assistance of Ural Transport Machine Construction Bureau (UK BTM). The tank is equipped with an auxiliary power unit (APU) and an air conditioning system (AC), a "must" for the Indian climate.
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Indian Army T-90S Bhishma MBT (Picture source: via The Dead District)

Notice the absence of the IR dazzlers of the Shtora (allowing ERA coverage of the spots). However, a tweet posted by Kunal Biswas on October 26 showed a model of Rafael’s Trophy APS (Active Protection System) adapted to an Indian army T-90S Bhishma main battle tank. Some 3,000 tanks and other armored vehicles might be fitted with this APS following a major decision taken during a (Defense Acquisition Council) DAC meeting held in February 2021. Laser sensors are there, though, as part of the modernization program.

Army Recognition reported that, according to a news published on March 16, 2020, by TASS, India had taken the decision to purchase 400 T-90S Russian main battle tanks (MBT), a tank which is already manufactured under license in India, said Head of Russia’s Federal Service for Military and Technical Cooperation Dmitry Shugayev during an interview with Rossiya-24 TV channel.

In February 2020, Russia and India signed a deal extending the licensed manufacturing of T-90S Bhishma (local name) main battle tanks until 2028: "In 2019, a deal was signed with India to extend the licensed manufacturing of T-90S tanks until 2028, and as we know, the Defence Acquisition Council approved the production of 464 T-90S main battle tanks.

In 2001, India purchased 310 T-90S tanks from Russia, of which 124 were delivered complete and 186 were to be assembled from kits delivered in various stages of completion with an emphasis on shifting production to domestic means. The T-90 was selected because it is a direct development of the T-72 that India already manufactures with 60% parts commonality with T-90, simplifying training and maintenance.

The T-90 manufactured in India is called T-90 Bhishma, this version was built based on requests of the Indian army, equipped with the French Thales-built Catherine-FC thermal sights, and is fitted with Russian Kontakt-5 explosive reactive armor (ERA).

The T-90S is an enhanced version of the Russian-made T-90 Main Battle Tank (MBT) to meet the operational requirements of countries in Asia. The main armament of the T-90S MBT includes one 125 mm 2A46M smoothbore gun, stabilized in two axes and fitted with a thermal sleeve. The gun tube can be replaced without dismantling inside the turret. The gun's automatic loader will feed both ordnance and missiles offering a high rate of fire (up to 7 to 8 rounds per minute). The T-90S is also able to fire the 9M119 Refleks (NATO designation AT-11 Sniper) anti-tank guided missile system with a range from 100 m to 4,400 m. 

Indian Army T-90S Bhishma MBT (Picture source: via The Dead District)