India's Concerns on COMCASA
A.intrusive Equipment
The US has a similar agreement with South Korea and the language of the agreement with South Korea is highly intrusive. Thus, some experts in India feel that India has implicitly accepted the extraterritorial application of American law. This is at variance with the end-user monitoring agreement (EUMA) between India and the US in 2009.
The EUMA stated that US inspectors would not inspect Indian bases. The question is what is the status of EUMA and COMCASA? The government has not clarified anything.
B. Not compatible with Russian
Thus, India favors checks and balances to be inbuilt that address Indian concerns. The US has modified the CISMOA to COMCASA where it has categorically asserted that the COMCASA communication links will apply only to the weapons that the US supplies. The US will not be able to share Indian data, from Indian platforms, with any other country, and will not access data without permission.
C. can track all aircraft, UAVs, and missiles
The US has reasons to worry because S-400 can map America's prior F-35 fighters (which have a unique feature of low observability character) he third concern is that if the US installs any communication systems in India under COMCASA, mold it affect and compromise the secrecy of military installations in India?