GGB The FSSAI requirement scales with the size of the operation (a basic registration, a state licence or a central licence by turnover and scale), and the fee is modest relative to the whole opening budget. Any figure online is indicative — confirm the current category and fee for your operation with the FSSAI. As everywhere, the licence is the small, predictable line; it is not where the money or the risk concentrates.
From India Restaurant Licence Cost: Every Fee, Explained — the full reading, with the method behind this answer.