A massive fire that ripped through a seven-storey shopping mall in Dhaka overnight killed at least 46 people and injured 22 others, the government said on Friday, in one of the worst infernos to hit Bangladesh in recent years.

Sheikh Hasina was on Thursday sworn in as the prime minister of Bangladesh for the fifth term, days after her Awami League won an overwhelming majority in the general elections boycotted by the main opposition Bangladesh Nationalist Party (BNP) and its allies.

Bangladesh Prime Minister Sheikh Hasina on Sunday secured a record fourth straight term as her Awami League party won two-thirds of the seats in the general elections marred by sporadic violence and a boycott by the main opposition BNP and its allies.

At least four people, including two children, were killed and many injured in Dhaka on Friday when suspected arsonists set on fire a passenger train coming from Benapole, a port city bordering India, officials said, a day ahead of Bangladesh's general elections that have been boycotted by the main opposition Bangladesh Nationalist Party (BNP).

Fire service officials on the spot said three passenger carriages were upturned and feared many people were trapped under the dilapidated wagons though some 100 passengers were rescued with wounds and rushed to different health facilities.

Super cyclone Mocha made landfall along the Myanmar-Bangladesh coasts on Sunday after intensifying into the equivalent of a category-five storm, a senior Met official said.

The cause of the explosion could not be known immediately, but local residents suspected chemicals illegally stored inside the building, mostly used as an office and business complex, might have sparked the blast.

Bangladesh has sought revision of a 2017 power purchase agreement with Adani Power Ltd as the price for the coal-generated electricity appeared too expensive, officials said in Dhaka on Thursday. "We have communicated with the Indian company seeking revision of the agreement," an official of the state-run Bangladesh Power Development Board (BPDC) told PTI on the condition of anonymity and without elaborating on the matter. Media reports suggested that the "high coal price" to be purchased for the Adani plant at India's Jharkhand emerged as the key factor for the dispute.

Dhaka emerged as the free capital of independent Bangladesh on December 16, 1971 after the war between India and Pakistan broke out on December 3 when the Indian troops directly stood beside the Mukti Bahini soldiers.

"Bangladesh does want war," home minister Asaduzzaman Khan Kamal told reporters in Dhaka when asked for comments on the Myanmar security forces actions on the borders, frightening both Bangladeshis and Rohingyas who took refuge in makeshift camps in the neighbourhood.

Bangladesh Prime Minister Sheikh Hasina is expected to travel to India on September 5 on a three-day official visit during which defence cooperation and regional stability are likely to be the focus of her talks with Indian counterpart Narendra Modi, an official said on Monday.

All the convicts belonged to outlawed Jama'atul Mujahideen Bangladesh.

On Saturday night, the fire broke out at BM Container Depot in the Kadamrasul area in Sitakunda Upazila in Chittagong.

At least 40 people died and nearly 150 others were injured on Friday after a packed three-storey ferry carrying around 500 passengers caught fire on the Sugandha River in southern Bangladesh, officials said.

The temple was totally destroyed by the Pakistani Army's operation codenamed 'Operation Searchlight' in 1971, targeting the resistance movement in the country.

President Ram Nath Kovind on Thursday attended the Victory Day Parade as the 'Guest of Honour' in Dhaka as Bangladesh marked 50 years of victory in the Liberation War against Pakistan by showcasing its military might which included spectacular aerobatics and display of defence acquisitions.

President Kovind, who arrived in Dhaka earlier in the day on his maiden State visit at the invitation of his counterpart M Abdul Hamid to attend the golden jubilee celebrations of Bangladesh's independence from Pakistan in 1971, held delegation-level talks with him which was followed by a banquet.

President Ram Nath Kovind will arrive in Dhaka on Wednesday on a maiden three-day State visit during which he will hold talks with his counterpart and attend the golden jubilee celebrations of Bangladesh's 1971 independence from Pakistan.

A key suspect and his accomplice accused of fanning communal hatred on social media and instigating the recent violence against the minority Hindu community in Bangladesh have confessed to their crime in a pre-trial hearing, a court official has said.

At least 70 houses and shops of the Hindus were torched in attacks at Pirganj following Mandal's Facebook post on October 17.