Roy Mathew (33), a gunner, was found hanging from the ceiling of a room. Doctors said Mathew, whose body was decomposed, might have died before three days.
While called it a suicide, Army denied having any hand in the death of the soldier.
Reportedly Mathew, who had served in the Army for around 13 years, was seen as working for the personal needs of the officers and taking their children to school.
After the video was posted online and went viral in social media, an investigation had been launched against Mathew.