jee mains
With a rank under 50000, your expected marks would be around 130-140.
To know more about this you can go through this link once -: https://googleweblight.com/i?u=https://engineering.careers360.com/articles/jee-main-result-marks-vs-rank%2520&hl=en-IN&tg=173&tk=16857576141239993394
Study 40% syllabus and score up to 100% marks in JEE