[Resolved]  indian high commission ,london — OCI ( overseas citizenship of India)

I started the process of applying for OCI almost 5 months back in November through High Commission of India at London. It was finally granted on 24 Feb ( documents received back in London), had sent documents including british passports to OCI dept at HCI londonon 27 Feb for collection our OCI by special delivery. I still have not received my passports back after nearly 6 weeks. No one at HCI answers emails or picks up phone to answerany queries or responds to voicemail messages. What do I do ? Complain to External affairs ministry ? I could not find a compliants section on their website.