Pune

Hii Tarun,
Go through the link below:
https://www.shiksha.com/mba/ranking/top-mba-colleges-in-india/2-2-0-0-0
If you wish to do PGDM program this year then search for the colleges which still has their admission process open. Also, if you want to do PGDM next year then I would suggest you to try for:
FORE School of Management, LBSIM, SIBM, SCMHRD, Nirma University, IIM Ghaziabad, IMT, BIMM, etc.

Colleges that offer 1 year Diploma in mechanical engineering in Pune:
Government Polytechnic Pune
International Institute of Management and Technical. Kohinoor Technical Institute.

Hey! Yes you can get admission in govt. polytechnic pune for computer engineering but also refer this link to get detailed information:https://www.shiksha.com/college/government-polytechnic-pune-shivaji-nagar-4235/admission

KIT KOLHAPUR IS A BETTER OPTION AS Placements:Having a nice packages placement for
mechanical and CSE also good placements for electronics and other branches. Also students here are satisfied with the companies they are working with. Also Bentley company visited here in 2017-18 academic year for IT. Infrastructure:Buildings are desingend by an well known architect. Having each and every facility need for students. Also very good and fresh environment is present here due to tree plantation done here.

The placements depend on the department. 50% of the students were placed in the computer Science department in the last year. Overall, the placements are average. Last year, the highest package offered was 5.1 LPA, and the lowest was 1.3 LPA. A workshop which is provided by Ashok Leyland is available for the students of mechanical.

UG Level: Candidates should clear Class 12th in any stream with minimum 50% - 60% marks from a recognised board. It may be noted that Humanities & Social Sciences eligibility criteria mentioned above might vary depending on the policy of the university or college in which a candidate is applying for admission.

Kindly visit this link:
https://ask.shiksha.com/questions