When rupee was constant at around 100rs, cars barely depreciated in those times either. We can't blame rupee depreciation for a problem caused by the mentality of our locals. Even in 2019 rupee had highly depreciated, yet you got the rebirth for a much more reasonable price than its current worth. Rupee has not depreciated enough in the past 2 years to correlate with the 5-10 lakhs increase in rebirth prices. So it seems like used car market and the mentality of buyers and sellers has gotten even worse than before.
Also we can look at our neighbor india which has had bad depreciation of their rupee as well, yet cars suffer from huge depreciation still. In our current market, it makes 0 sense to go for any used car, unless you cannot afford any new car above cultus level. I'd buy old corollas/cities/civics over brand new wagon r, alto, bravo, pearl, etc. And that is only because those cars are literal trashcans with barely any life remaining in them even when brand new. So might as well get a used and abused car. Rebirth is a horrible buy in the current market. Similar condition civic Xs are just a bit more expensive for a much better car. I wouldn't wanna pay a dime over 2.2m for a reasonable condition rebirth.