From what I can tell, Indian emissions regs are based on the European emissions regs and a 75 HP off-road diesel engine would have needed to be EU Stage V compliant in 2020 (India calls it "TREM V.") EU Stage V is similar to U.S. EPA Tier 4 but whether or not it is "close enough" is really a lawyer question.
One other thing I do know is that merely looking at the engine model number is not sufficient to tell the emissions standard. The EU Stage III/TREM III (roughly U.S. EPA Tier 2) 3029 engines offered in India after the U.S. Final Tier 4 switch had the same 3029H designation as the U.S. Final Tier 4 engines. Deere even went so far as to replace the Stanadyne rotary injection pump they'd used forever on Tier 2 and earlier U.S. 3029D/3029T engines with an inline mechanical unit similar in outward appearance to the common-rail high pressure pump used on the U.S. 3029Hs, but the Indian 3029Hs did not have the ECU or DPF.
Personally, I'd just get a U.S. 5075E and avoid the potential headache as it is basically the same tractor anyway.