The Islamists, who carried out Bangladesh's terror worst attack at a cafe in Dhaka, had slaughtered all the 20 hostages within 20 minutes of the brazen assault, a top police official said.
"The five terrorists killed at Gulshan (cafe) were JMB members. The police had their details and been looking for them for a while," Inspector General of Police AKM Shahidul Haque told media persons.
Sushma Swaraj arrived in Bangladesh capital Dhaka on Wednesday night on her first official visit abroad after becoming External Affairs Minister during which she will hold talks with the top leadership on key bilateral issues including land boundary agreement, proposed Teesta river pact and illegal immigration.
External Affairs Minister Sushma Swaraj on Friday met former Bangladesh President Hussain Ershad's wife and opposition Jatiya Party leader Roshan Ershad before leaving for Delhi at the end of her three-day visit to Dhaka.
Inspector General of Police AKM Shahidul Haque, however, did not disclose the identities of either of the detainees or where they were being kept.
Bangladesh on Tuesday pressed anti-terrorism charges against several suspects and identified the fifth assailant in the country's worst terror attack as authorities intensified efforts to unravel the plot behind the brazen assault in which 22 people were slaughtered by Islamists.
Both sides will discuss the ongoing incidents of ceasefire violations at the border, the resolution of which will be given topmost priority
The parliamentary clearance to the Land Boundary Agreement Bill has ensured that Prime Minister Narendra Modi gets the same tumultuous welcome which late Indira Gandhi received when she first visited Bangladesh after the liberation war in 1972