Due to ongoing tensions with China, The Indian Air Force has deployed four Su-30 MKI at Hasimara which is the nearest airbase to the spot nearest to Doklam Standoff.
Commercial imagery captured the aircraft in October but it is possible that they have come earlier. In September 2017, the imagery shows workers covering the alert revetments on both ends of the runway preventing any EO observation. It is expected that the fighter planes have arrived from Tezpur where the complete squadron is deployed.
MIG-27ML/UPG are already deployed in Hasimara. The Sukhoi 30 MKI joins the MIG-27ML. The ground attack is reported by Squadron 22. The total number of MIG-27 has reduced in the recent years, when the previously co-located No 18 Squadron was decommissioned. There are older and non functional airways are parked.
TOI reported that 22 Squadron will also be decommissioned. It might be possible that Hashimara gets one new squadron of Dassault Rafale but it will take atleast one year and might come by 2019. Till the time, Rafale doesn’t arrive, the rotation of Su-30 MKI will continue at Hasimara for some time now.
The imagery also shows heavy deployment of Chinese troops, east of Doka La border. They can again reinforce troops in the Bhutanese territory again. China also maintains a large number of aircrafts at bases near the Dokalam standoff site. They also have improved the infrastructure of bases near by.