i am indian citizen holding indian passport issued by indian embassy in Abu dhabi- U.A.E.

Hello, man, you can renew your passport at the embassy of India in PRC. The first step is to prepare the relevant required documents containing the application form, your original passport, current passport and additional booklets (if any), four recently-taken colored passport size photographs and photocopies of the first page, last page and the valid Resident Permit/visa page. Secondly, submit all the above-mentioned documents to the embassy to apply for renewal.