New Delhi, Sep 3 - The 22 new police stations in the capital, sanctioned by the home ministry recently, will be operational by Sep 21 to 'reduce response time and simplify the police-public ratio' in the city that has been under threat from terrorists, police chief Y.S. Dadwal said Thursday.

'We are in a process of expansion and would have enough forces in these police stations,' Dadwal told reporters here.

The central government Tuesday also sanctioned 6,478 additional policemen for the capital in the wake of terror threat perceptions.

'I am glad to inform you that taking note of the growing needs of the metropolitan city of Delhi, the central government has sanctioned additional manpower of 6,478 policemen at a cost of Rs.199 crore (Rs.1.99 billion) per annum. Further, 29 new police stations have also been sanctioned,' Home Minister P.