Hii,
Abhishek i am taking your question as your are are asking for JEE mains and category as general.
So you are not eligible for that exam as for that minimum marks in class 12th is 75% with maths as a compulsory subject .
But there are many colleges which have their own exam for entrance in first year and different criteria too.
Many colleges have direct admission policy too so you should try for those colleges
Best of luck..!!

Dear Abhishek,

There are so many entrance exam for engineering. 

Please mention the name of the entrance exam you are asking for?

You cannot get admission in Nits or iits with this Marks

Do you have any reservation quota ? If no then I don't think that you will clear main.But you will get rank and you will be eligible for private colleges.