Police said thousands of officers would be deployed for the annual street parade to celebrate the new year on April 14 that traditionally sees hundreds of thousands of revellers swarm through the capital.
"We want people to celebrate the festival safely. Therefore, we have taken unprecedented steps to prevent any mishaps," Dhaka Metropolitan Police spokesperson Maruf Hossain Sorder told AFP.
Open-air evening concerts, normally held at Dhaka University and the main Ramna Park, have been banned as part of the stepped up security arrangements.
Masks, commonly worn during the new year parades, are banned this year for security reasons, along with plastic vuvuzela horns to reduce noise pollution, the home minister said last week.
Sorder said police have also launched a stepped up hunt for Islamic militants as Muslim-majority Bangladesh reels from deadly attacks on religious minorities and foreigners in recent months.
The government has blamed the attacks on home-grown Islamic militants, rejecting claims of responsibility from the Islamic State group as well as Al-Qaeda.
An activist, who posted against Islam on Facebook, was killed last week, the latest in a series of murders of secular bloggers and a publisher.
Police did not say if Bangladesh was facing any specific threat during the new year, but in 2001 a bomb blast in the Ramna park killed 10 people. Eight Islamist militants were later sentenced to death for the attack.
Ahead of this year's festival, a group of clerics has asked the government not to promote the festival, calling it "un-Islamic and Haram (forbidden)" according to mass-circulated Bengali daily Prothom Alo.
