B.E.

Without JEE you can take admission but you Must appear for the Common Entrance Examination (CEE) conducted by the Directorate of Technical Education, Assam, and be selected for admission.The procedure for appearing CEE usually starts in the month of March/April every year.
Fee structure of Assam engineering college could be approx Rs 12000 per year and for private institutes it varies from Rs 40k to 2 lakh.

Hello Prajakta, it's very nice and heartening to read your query. I am indeed thrilled to learn that inspite of three years gap, you are still interested in studying further. Yes, you can definitely do this. You just need to have a look at te website of the "dte of the technical education" of your state. You will find complete information there. Best wishes to you.

Hello Devanshu Nath, when a student takes admission under lateral entry scheme, admission is directly into second year of 4 year degree course. Hence you are not allowed to appear for exam of first year. You will be appearing for third semester exam. Best wishes to you.

The candidate must have pursued a Bachelors degree in BCA or equivalent. If you have Bachelors degree you can do it not with Diploma.

Yes, you can apply for it. Check college website for more information.

You need 50% on an average to get admission in CU.

Lnct would be the best choice.

No, there is no such rule but sometimes it depends from college to college.

There is no such entrance exam for the admission in Chandigarh University But there is Cucet exam for the scholarship and the admission is done on your marks in 10+2 marks minimum eligibility should be 60%
For any doubts you can consult the university helpdesk and also you can check online from chandigarh university site.