Subhash Chand Tomar (47) breathed his last at Ram Manohar Lohia Hospital this morning.
He was on ventilator since his admission in the hospital.
Tomar, a graduate, hailed from Meerut in Uttar Pradesh.
He was posted in Karawal Nagar area and was called for maintaining law and order at India Gate area during the protest on Sunday.
He was found lying injured on Tilak Marg and was rushed to hospital.