hi,

see you can attempt other engineering exam or entrance test if you have really interested for engineering study. see there is many scholarship available for 12th pass students to do higher study. also many colleges have scholarship scheme for economically weaker students. some popular scholarship is

Post Matric Scholarships Scheme (For minority sections of society)

Merit-Cum-Means Scholarship

Central Sector Scholarship (for more than 75% marks holder in 12th)

you may know about the scholarship details from below link:

https://school.careers360.com/articles/scholarships-in-india