As of 10am, there is no report of any casualties from the powerful storm, which made landfall around 6am at Kutubdia, said Jalil Uddin Bhuiyan, control room official of the disaster management ministry.
“There have been strong winds coupled with heavy rains since the morning. The streets are deserted,” said Tahmidur Rahman, an official of the Cox's Bazar administration, adding that the residents have been moved to safety.
Cox's Bazar town saw winds of up to 114 km per hour and Chittagong 128 km per hour.
But all fishing boats and trawlers over the north Bay of Bengal and deep-sea were advised to remain in shelter as the sea still remains rough.
More than 317,000 people in six coastal districts have been evacuated by Monday night, said the disaster management ministry.
Cox’s Bazar district administration said some 538 shelters were ready to accommodate more than 500,000 people.
The disaster management and relief ministry has set up 24-hour control rooms in each of the upazilas in the districts that can be reached at 9540454, 9545115, 9549116 and 01715-180192.
The very warm waters of the Bay of Bengal caused a tropical low to develop into a depression on Sunday morning, which upgraded in to a deep depression by the afternoon.
“The cyclonic storm will cause huge rains while crossing through Satkania and adjacent areas, between Cox's Bazar and Chittagong. It is expected to weaken into a land depression after crossing the coast,” Senior Meteorologist Khan said.
The storm's path suggests it might affect some northeastern Indian states.
The Indian Meteorological Department said the cyclone may weaken into a land depression by 6pm Tuesday. It has forecasted heavy rains in the states of Assam, Mizoram, Meghalaya and Tripura.