ssverma,
If it's any conciliation I am in the same boat. My status is exactly the same and they have my passport since last month. I sent them a UPS waybill to so that everything gets back to me swiftly but it's not been activated on their side yet. I've sent them a note and haven't gotten a response even though it's been over two weeks. No matter how big the pile I think at this stage of the process the procedure of stamping shouldn't take this long as up until recently you could do same day stamping.
However as yet I've got nothing back. I've emailed my own lawyer and asked her to look into it as I'm getting anxious also and would like to get everything sorted out at last.