Diploma

Unfortunately, you cannot get regular Diploma in engineering certificate based on Diploma from institution of civil engineer, unless you join and undergo formal education in a polytechnic. You can seek lateral entry admission in 2nd year of B.Tech in universities such as Manipal, etc. based on your Diploma earned by distance learning.

Dear Prasanth Pavuluri,
Hospital administration is a growing area. There are some institution offering this course.
All the best.

There are lots of good career opportunities on completion of aeronautical engineering. Aeronautical enegineers can join DRDO/ ISRO/ aviation manufacturing or its ancillary units/ airlines/ Air Force/ educational Institutes/ R&D Units / IT etc.

Hi Dear,
For admission into IITs and NITs, you have to appear JEE Mains as well as Advanced. There is no other gateway for admission.
All the best.
Thank you.

The main objective of internship is to get the practical knowledge of the industry. It is always better to go for as many internship as possible because it will give you the industrial experience, which will definitely help you in your future.