India Post — Item showing delivered but it is not delivered

Address:

Kaliwas Branch Office

I had placed an order with an online merchant for Rajasthan which dispatched the item through speed post with tracking id EM[protected]IN. When i check the status today on india post, it says the item is delivered even though the recipient has not received it. I want to know where my parcel. The customer care number- [protected]- is non functional. There is no way to find out where the item is. I am located in Lucknow, Uttar Pradesh.