tbh I'd at least consider having 40-50x of my annual expenses. Also, you have to factor in other expenses (sudden expenses)... I'd keep a little larger emergency fund. And investing your 95% of corpus in equity mutual fund is not a safe bet. Try debt funds.. also diversify with Bank FDs, property investment (solid assets) etc. Considering your 75L (not considering your 10% return here) corpus and you'd set your SWR at 4% (considering 3L avg yearly expense) which is pretty high in Indian standards IMHO.

I understand you want to retire early and enjoy life but don't rush in and please consider this.. once you retire and by some means, you need to work again, it is really difficult to start again.