Unfortunately I did not get any reply for the above mentioned query. I am posting this message for the benefit of other BCMTians who want to visit Pune and need a budget accommodation.
I could find one guest house near Dinanath Mangeshkar hospital near Mhatre bridge off Karve road. 5 mins walk from DMH. The rooms are clean and tidy comparable to Ginger. Rates start from 800 (Non A/C) to 1150 (A/C) plus 4% taxes.
No restaurant, but there are many places nearby where you can have nice food.
No place for parking inside the premises.
Giving the phone no of the place in case anybody needs it