Rachit Kumar Gupta cleared CSE 21 with AIR 286. Following is his Chemistry Optional strategy: https://muditjainblog.wordpress.com/2022/06/22/rachit-kumar-gupta-air-286-cse-21-chemistry-strategy/ Decode Ethics: https://amzn.to/3jqKuge Decode History: https://amzn.to/3g7doAi Telegram: https://telegram.me/decodecivilsgroup #UPSC #MAINS #CSE #DecodeEthics #DecodeHistory #MuditJainBlog #PRELIMS #CSAT #GS 3.3K viewsedited 18:18