Colleges in Pune

Since you have mentioned many colleges from the various locations. So If I have to suggest the best one, then you should go for ITM Mumbai. In case you have concerns of location, then In Pune you may go with Kirloskar. In Delhi/NCR I would suggest, you should go with FOSTIIMA Business school. Though, it's not on your list, but it's far better than the other colleges you have mentioned at a reasonably low course fee with better placement.

Jaipuria Institute of Management is better. Basically the companies know what kind of candidates they'll find an in institute. Companies like HUL, ITC Ltd. , Deloitte, HCL, Daffodil, Marico, Tata AIG, Amazon, etc. Have already visited the campus for placements. Still there are companies coming. The ROI is assured at Jaipuria.

Doing Engineering Diploma through distance mode is not valid. So please avoid to do this. Prefer to do the regular stream engineering or part time regular Diploma courses.