Your concern is not uncommon these days - there are many others I know who have faced the same problem. If issuing e-mails is not yielding a response, you can send them a legal notice claiming refund of the amount paid along with the legal costs incurred by you for issuing the legal notice. If they still dont reply within the time stipulated by you in the legal notice, you can file a consumer complaint in the district forum of the jurisdiction in which their office is situated. For obtaining the details of the registered office address, you would have to get a search done on the Ministry of Corporate Affairs Website with the name of their company which is obtainable from their website.
You cannot file a complaint at a police station since it is not a criminal offence. Tracking their account through your banker would not fetch you anything since any bank is duty bound not to disclose its customer's details to any third party.
Hence, issuance of the legal notice as above would be the right thing to do but i suggest that be done after a couple of weeks atleast since you had placed your order only on the Feb 11, 2013. Meanwhile, keep trying to contact them.