Hi Arundhati.
It may be a little difficult to get into IIMs with this academic profile. 
However, if your aim is to pursue an MBA from a good college and not just from an IIM, you can also take a look at premier management institutes like FMS Delhi, MDI Gurgaon, IIFT Delhi, SIBM Pune etc. Do take a look at the placement reports of the institutes, as well as the curriculum they offer and see if it suits your career requirements.
Conclusion – As you stand, I don’t personally think IIMs can be/should be your priority when it comes to choosing an MBA college. Yes, the IIM tag is quite useful, but ultimately it depends on what you bring to the table with your work.