Diploma

Hello Mr. Subhro,
From my opinion you can go for integrated MBA (BBA + MBA) of 5-year through distance learning mode.
For DMS check out the below link:
http://www.ignou.ac.in/ignou/aboutignou/school/soms/programmes/detail/198/2

Following is the link for the best colleges in Bhuvneshwar for Diploma in Mechanical Engineering you can find there when to apply for it.
https://www.shiksha.com/search/?q=Diploma+in+mechanical+engineering&sp[]=324&qer=0|0|0|0|0|0|324|0|0|0|0|0|0|0|10|0&sa=912^^0^0^324^0^0^0^0^0^0^0^10^0^0&rf=searchw

You have to complete Bachelor's degree in your field, after that, you are eligible for MBA.

Go for GPAT. Nothing is better than this.

Diploma in food technology students have good job opportunities in the present time where there are numbers of companies, large and small scale, which are involved in processing and packaging of the food products for the consumer. The fields where you can find jobs are:
Catering establishments
Hospita

Hi Mani,
Though both these colleges are good I will strongly go for the one with co-op option. Being an international student, it's very important that you gain some experience while studying, this will increase your job prospects there and you can also show some international learning experience on

Yes ofcourse you can apply.