I got 78% in 12th board ...will i have any problem in my future...if i will go for btech?
Hello!
No, I wouldn't say problem per se, but most institutions need a 75% or more cut off from your 12th results, so you'll mostly be able to apply to most colleges. It also depends on your score at entrance exams like JEE Mains, and most colleges give more importance to your entrance exam results.
Good luck!