I have 50 marks in her mains which good engineering colleges I can get admissions
JEE Main 2025: Rank Predictor | College Predictor | Marks vs Rank vs Percentile
JEE Main 2025: Sample Papers | Syllabus | Mock Tests | PYQs | High Scoring Topics
Apply to TOP B.Tech/BE Entrance exams: VITEEE | MET | AEEE | BITSAT
Those marks won't get you to be in IITs. So it's better to use those marks in private engineering colleges. It's my opinion.
If you secured extremely well in your Class XII exams(85% + ...or 93% +) then you can also consider Amity University as they have a full fleged scholarship scheme.PS: Amity CSE is good.Do consider it.
JEE Main 2025 College Predictor
Know your college admission chances in NITs, IIITs and CFTIs, many States/ Institutes based on your JEE Main result by using JEE Main 2025 College Predictor.