NEW DELHI: Former chief minister Arvind Kejirwal has just three weeks to vacate the Tilak Lane flat that was allotted to him in January.After resigning from government on February 14, Kejriwal was given a grace period of 15 days, during which he was allowed to stay on in the official residence for free. He has been paying a monthly rent of Rs 80,000 since the past six months to continue staying in the flat. The Delhi government has now issued a fresh notice to Kejriwal to vacate the Tilak Lane house by July 31.Aam Aadmi Party sources say Kejriwal is likely to move back to Kaushambi, where his wife had earlier been allotted a flat by the revenue department."His wife has already submitted an application for allocation of a flat. The family will most likely move out of the Tilak Lane house by the month-end," said sources.The decision to move back to Kaushambi was taken after Kejriwal failed to find a house big enough to accommodate his family and office. A property in Civil Lines that was finalized had to be eventually rejected after the owner's brother dragged the matter to court, claiming the property was disputed.Sources say Kejriwal will now most probably move his office to the current party office on Hanuman Lane. The building was offered by a party supporter at a rent of Re 1 per month for the Delhi elections. "The party office has to be shifted and we are looking for alternate locations. Meanwhile, Kejriwal is expected to move his camp office to Hanuman Lane, especially since it falls in his constituency," said sources.The last few months have seen the PWD go after ex-ministers to ensure official residences are vacated and all dues cleared.Former social welfare minister in the Sheila Dikshit cabinet,Kiran Walia too was issued a notice to vacate her house. It was only after the notice that she vacated the house. She had to pay over Rs 11 lakh as rent for the period she overstayed.Former ministers Arvinder Singh and Haroon Yusuf have already moved to rented flats in the Commonwealth Games Village.