Opening a new front against outside supporter Congress, the Delhi Government on Monday wrote to the President seeking action against former Chief Minister Sheila Dikshit for alleged irregularities in regularising unauthorised colonies in the metropolis.

The move comes after the President sought Delhi government's comments on the report of the Lokayukta in which Justice Manmohan Sarin in November 2013 had ruled that granting of provisional certificate for regularisation of unauthorised colonies in 2008 by Dikshit was done to gain political mileage in the elections.