Kursom Sangma, a resident of West Garo Hills, was found hanging behind the mess of his battalion based in west Delhi's Vikaspuri by his colleagues around 6.50 am, Deputy Commissioner of Police (West) Sharad Aggarwal said.
A senior police official said said Sangma allegedly hanged himself in the night. The reason for which he took the extreme step could not be ascertained as he did not leave a suicide note.
Sangma was earlier deployed in the Lampoor deportation centre where three Pakistani terrorists, who were to be deported escaped from their custody, were put up by authorities. The terrorists escaped from a city hospital.