BNP Central Executive Committee member Nipun Roy Chowdhury has been held on charges of attacking police and arson during the clash in front of the party headquarters.
The Detective Branch (DB) arrested her on Thursday near the Nightingale intersection at the city’s Kakrail, a few hundred years from the BNP’s Naya Paltan headquarters, Deputy Commissioner (DB East) Khandaker Nurunnabi told Bangla Tribune.

A lawyer by profession, Nipun is the daughter-in-law of BNP National Standing Committee member Gayeshwar Chandra Roy. Her father Nitai Roy Chowdhury served as state minister under the Khaleda Zia administration.
On Wednesday, BNP activists clashed with police in their first street battle with law-enforcement agencies since Bangladesh started its countdown to the election set for Dec 30.
Police said it was an unprovoked clash and the BNP tried to turn it to its own advantage, while an opposition leader claimed that the government was behind the attack.
On the third day of the party’s nomination form sale at the party’s headquarters in Naya Paltan, the BNP supporters pelted the police with brickbats and ended up in violent clashes with them.
BNP supporters set fire to two police cars and one armoured vehicle in the Naya Paltan area. Police used tear gas to control violence.
At least 20 law enforcers and over 50 BNP supporters were injured in the clash.
Later in the day, Paltan police started three cases against nearly 500 people and so far have made 68 arrests.