Two Maritime Recce sorties were undertaken by the Dornier aircraft of the Navy revealing widespread destruction localised around the temple town of Puri, according to an official statement.
The aircraft are carrying approximate 45 tonnes of relief material including medicines for the locations affected by Cyclone Fani.
Two trains originating from Bhubaneshwar will remain cancelled and all services to Puri are unlikely to begin before May 10.
Bangladesh authorities said over 1.6 million people were shifted to safer places as about 36 villages were flooded after the storm surge breached embankments in the country's coastal areas.
SDMA sources said the heat wave was likely to persist over the next few days and advised people to restrict outdoor activities especially between noon and 3 pm when the impact could be higher.
The decision has been taken following a request from the Odisha administration in view of the rehabilitation work being underway in the state.
Following a decision of the National Crisis Management Committee (NCMC), the Ministry of Home Affairs has ordered for advance release of financial assistance of Rs 1,086 crore to the State Disaster Response Fund (SDRF) of four states , an official statement said.