Uttar Pradesh's Prayagraj, a night curfew has been imposed from 10 pm to 8 am in the district from today till further orders.However, essential services will be exempted from the curfew, the District Magistrate has informed.A night curfew has also been imposed in Uttar Pradesh's capital Lucknow, Kanpur and Varanasi with effect from Thursday night.Night curfew will be imposed in areas under the Lucknow Municipal Corporation from Thursday till April 16 from 9 pm to 6 am, the official said, as the coronavirus cases continue to surge.Night curfew has also been imposed in Kanpur from 10 pm to 6 am and will remain in place till April 30, Kanpur District Magistrate Alok Tiwari said in a statement.There will be exemption on ferrying essential items.