the Following was the experience (4 days ago) at MMD Mumbai for submitting and getting all documents verified for COC revalidation.
COC Revalidation time at MMD Mumbai
Hi Austin - I'm about to renew my COC as well.I had a couple of questions. How may I contact you. My email id is firstname.lastname@example.org or email@example.com. Im on 9987999218 (whassup) as well. Thanks very much. Deep D'souza.