As a B.Tech CSE student, I'd recommend appearing for entrance exams that offer the best opportunities for engineering aspirants. The most popular and recognised exams include:
JEE Main and JEE Advanced - The most crucial exams for admission to IITs, NITs, IIITs, and top engineering colleges across India. JEE Main is the first step, and those who qualify can attempt JEE Advanced for IITs.
State-Level Entrance Exams - Exams like MHT CET (Maharashtra), WBJEE (West Bengal), KCET (Karnataka), and UPSEE (Uttar Pradesh) are great options for state engineering colleges.
BITSAT - Conducted by BITS Pilani for admission to its campuses in Pilani, Go