What is the capital gains tax on selling a house in India?

STCG (held under 24 months): taxed at slab rate. LTCG (held 24+ months): 20% with indexation before Budget 2024, now changed to 12.5% without indexation (or old method if more beneficial for pre-July 2024 purchases). 54EC bonds investment within 6 months of sale can exempt LTCG up to Rs50 lakh.