Making money in markets is mostly about valuations.
You buy undervalued stocks, you end up making money.
You buy overvalued stocks, you end up losing money.
Now valuations is seperate from index. It’s not necessary that some stocks were cheaper (valuations wise) at Nifty 10,000.
Also, at Nifty 25,000 there are some stocks which are still cheaper.
At Nifty 30,000 too there would be enough stocks available at cheaper valuations.
Our goal as stock picker is to buy stocks cheap. Irrespective of whether Nifty is at 10k, 25k, 30k or 50k.