Dual

B.Tech Integrated a 6 year course after class 10th while B.Tech is the regular 4 year Bachelors course after class 12th for which you have to choose Science to pursue engineering and study subjects like biology which are not required in streams like computer engineering. To select for your B.Tech. Good luck.

Yes, you can do PGDHM course. You are eligible for the same.

There are many institutes but you can't pursue M.Ed without B.Ed. IGNOU is the best option if you want to pursue B.Ed.

You have the option of doing an integrated course, but not dual degree courses. Maybe that would be on offer in the distant future.

The list will be out in the mid of August most probably.
Good luck.

Hello Shubhra, The CSIR NET Exam is held to select the candidates for assistant professor and junior research fellowship awards. The candidates need to fulfill the minimum eligibility criteria to be eligible for the NET exam as below:
Age Limit: Must be below 28 years for NET JRF while no age limit for NET Lectureship. Educational criteria: The candidates must have post graduation degree with more than 55% aggregate marks. Coming to your questions, as you have completed the post graduate degree you are eligible if you have fulfill the other requirements. Hope it will help you.

Your percentage is really nice. You should be able to secure your seat for sure. All the best.