lone falcon,
try talking to the various 737 operators in India. Also, if you dont have command time on type, it is impossible to get in as a DEC with the airlines in India. With your experience (and assuming you do not have current Indian citizenship) you can apply for an OCI (Overseas Citizen of India Ceritficate/Stamp) in your current foreign passport. If approved, you will then have the opportunity to convert your licences to the Indian equivalent and can then only apply to the private carriers(not state owned airlines) as a pilot.