Just wanted to share the news that my account finally got verified about 3 days back after I submitted all the possible documents and had consistent followup with support team. One thing that I changed in the photograph I shred, which got my account verified, was using same frame for my spectacles as I used there in my ID. Though I am not sure, but may be using different frame in selfie caused rejection or may be they were waiting for me to submit all possible documents before they could verify my account.