Same thing can be said for 65" 2 years ago.
Also, what happened in the past is irrelevant since you are forgeting the current scenario of competetion from Hisense and TCL which drove the prices down in the US. If history has to be believed, indian prices will meet the US prices 2 years down the line on average. Maximum 3 and minimum 1 year.
Iam pretty sure a H9G successor will be released in India within 2 years and will come in 75", even if it is double the price of 65U80, it wont cross 2L in current prices itself. This will create a chain reaction and pull down prices of other 75" FALDs to 2L range or make them perish. Same is the story of x9000h in US. Will mostly happen in india in 2 years.
Even VU has already launched a 85" FALD for 3.5L. Hisense is the provider and nothing stops them to release a 75" Toshiba FALD for 2L today let alone next year.
Once the US market has certain demand, the technology is already mass produced and the only thing remaining is logistics of bringing to india. Same applies for 75" FALD.
Ofcouse no one can predict future but the above is a most likely scenario.