A letter, purportedly written by a Lashker-e-Tayiba militant, threatening to eliminate Congress chief Sonia Gandhi and President APJ Abdul Kalam, was left at the ticket window of a theatre in Meerut by an unidentified person.

The letter, written by Karim Ansari, claiming to be a LeT militant, threatened to 'eliminate soon (sic) Gandhi and Kalam and to blow up on May 24 Meerut Railway Station, Apsara cinema and several other cinemas in the city besides the Delhi Railway station, India Gate and IGIA Airport'.

The letter was addressed to Apsara Cinema manager Shamel Kumar Dey on an inland envelope, which also bore a postal seal.

Dey told PTI that it was thrown in through the ticket window by a stranger at 1230 hrs, who escaped soon after.

The letter was handed over to District Magistrate Meerut, SP Meerut city and other departments concerned, he said.

The letter was written in Hindi but its date could not be deciphered, he added.