M.Tech

There are NIT'S from low rank to high rank. So, it depends if you are getting top NIT's like NIT-Trichy, NIT- Surathkal, NIT-Calicut and as such. Moreover, DTU is one of the topmost college of the country and has a good placement record.

Yes, you can prepare for CMAT along with it.

Ramaiah Institute of Technology (RIT), formerly M.S. Ramaiah Institute of Technology is an autonomous private engineering college located in Bangalore, Karnataka and is affiliated to the Visvesvaraya Technological University headquartered at Belgaum, Karnataka, India. The college was established in

Hello Rajesh,
Find out what you really like- if you like management, sales, marketing, etc. then definitely go for MBA. If you are interested in doing more technical research, go for M.Tech. Hope this helps! All the best!

It purely depends on your interest if you want still continue technical side or switch over to management.

You don't need graduation to pursue B.Tech. You need to clear your +2 and should clear the entrance exam.
You can pursue M.Tech after completion of B.Tech as it's a Master’s degree which needs completion of Bachelor’s degree.