Diploma

After Diploma in civil engineering, go for B.Tech in civil engineering. Your Diploma knowledge will help you very much.

Yes. But some college not allowed to take mechanical so before filling form confirm that. And some of college such as Guru Nanak Dev Engineering college Ludhiana, SLIET, Thapar are allowed to choose any stream.

Your percentage is high. So, you can get admission in the top colleges in Chennai. You have to give some entrance test for top colleges to get admission.

Hi,
I don't know if you have done any certification on Networking like CCNA or CCNP. If no, then I would suggest to grab these certifications. You don't need to do any Diploma separately because CISCO certification carries great value in industry and network field if you want to stick around networki

Diploma course mainly offered after the class 10. Students seeking admission in diploma can directly admit in second year of graduation course after the completion of diploma. There are various stream/branch available under diploma. You opt branch as per your interest.

On the basis of your percentage, you can do B.E abroad for that first you have to fill the form of different abroad universities. They will check your bio-data and if you are eligible, they will continue with further process.