Checking the valuation of a stock

I came across the “valuation score” in trendlyne, but unable to get info on how they calculate it.
How reliable/accurate is the “valuation score” in trendlyne?
Are there any other sites that provide the intrinsic value of a stock?
If we have to do it ourselves, can you please guide me with the procedure to find the same?

Try this site

Hi @neha1101, Thanks for your suggestion. But that site doesnt look to be very great…
For instance, below is the evaluation for TATVA (7.77 vs the cmp of 2550? !!! )

Might be because of less data availability. Let me explore further and reach out to you. Thank you