if i sell my ETF at a loss that’s more than 1Lac within a few months do i need to pay STCG tax?
If the ETF you own are Equity ETF, then the tax regulation is similar to individual stocks. Hence the same rules apply for ETF as individual stocks. In your case as you have sold the ETF at a loss, there will not be Capital Gain.
if you file your Income Tax returns, you can carry forward these losses for the next 8 years.
Discl: This is what I understand. please do your own research.
Do read this post regarding STCG set off