DTDC Courier & Cargo — consignment

I had sent a consignment vide number d40253883 on 23/12/2017 from lucknow to trivandrum. While tracking on internet, it is found that the consignment was delivered on 29/12/2017 i. E. After 6 days. But on query, it is found that the consignment was not delivered to the consignee. It is also found that the courier boy contacted the consignee at the given phone number to find out the location, but the consignment was not yet delivered.
I contacted the lucknow franchise from where i booked the consignment and also talked with trivandrum franchise on several times, but there is no positive response. I, therefore, put forth my complaint for necessary action as per law.
Thanks and regards
John joseph