Some channels that I used for prelims revision which all of you can check :

Some channels that I used for prelims revision which all of you can check :

1) Bookstawa (History)

2) Geography ( Sudarshan sir's video for prelims 2025 revision)

3) Art and Culture (Sleepy classes)

4) Polity (Laxmikant summary by Siddharth Arora sir)

5) Environment and ecology --- OnlyIAS short videos on topics like Rivers, mountains, ramsar sites etc

6) S&T -- Ravi Agrahari sir (YouTube)