Delhi BJP leaders, including Mr Tiwari, had alleged "misbehaviour and attack" by AAP legislators and "anti-social elements" at Mr Kejriwal's official residence on January 30, when they had gone there for a discussion to find a way to provide relief to traders affected by the sealing drive in the city.
In his letter to Home Minister Rajnath Singh, Mr Tiwari said he has a 'Y' category security cover, but it proved inadequate in wake of the recent incidents.
"The two incidents - West Bengal government's refusal to provide security during campaigning in the state, and the attack at Delhi Chief Minister Arvind Kejriwal's residence - are enough to prove that the existing security arrangements are not enough," he said in the letter.
The 'Z' category security detail entails 20-25 commandos covering a protectee. The cover extends to residence of the protectee who is also provided a pilot and an escort vehicle.
Get Breaking news, live coverage, and Latest News from India and around the world on NDTV.com. Catch all the Live TV action on NDTV 24x7 and NDTV India. Like us on Facebook or follow us on Twitter and Instagram for latest news and live news updates.