India Post — non delivery of my registered letter

Address: 88th Janpath, 1st Floor ,Bew Delhi 110001, New Delhi, Delhi, 110055

The oriental insurance co ltd do3 jhandewalan office new delhi send a regd. Post a letter with receipt no. Rd[protected]in dated 26.04.2016 but not delivered to my client address at m/s chintoo creation, c/o. 430/357, naraina village new delhi 110024 from post office swami ram tirath nagar, new delhi 110055. Kindly provide us status of delivery urgently.