New Delhi, July 18 :     Jagmohan, the young demolition man in his seventies, will finally have to quieten down. With the Cabinet today ordering regularisation of all unauthorised colonies that sprung up in Delhi between 1977 and 1993, the urban development minister's demolition drive is bound to go slow. It appears that the Centre, under considerable pressure for Jagmohan's campaign, has been able to bring around the minister to a compromise. Led by the formidable M.L. Khurana, six BJP MPs lobbied before Prime Minister A.B. Vajpayee and told him that the demolitions would erode the party's electoral base here. Jagmohan, however, was not discriminating between the rich and the poor as his bulldozers fanned out to different parts of the capital. Not just jhuggi-jhopri, he was even dismantling the homes of the rich and the famous. The process of regularisation will not be entirely free of cost. In non-affluent areas, the government will notify land rates and allot the plot in the name of plot-holder. Ten per cent extra will be charged as penalty for encroachment, though the government hopes to keep down the land prices in the impoverished areas. In the affluent areas, the charges will be in accordance with market rates which would be determined by the Central Board of Direct Taxes. The board will study the landprice pattern in affluent neighbourhoods and then announce the rates. The plot-holders in affluent illegal colonies would have to pay a heavy penalty of 50 per cent of the land price over and above the price decided by the board. The move will reduce demolition to a large extent, urban development ministry sources said. The government argued that with the regularisation, municipal laws and by-laws would be applicable to the new colonies authorised. They will get all municipal amenities and in return would also have to fill the municipality's coffers with the taxes levied. 'We shall also have fresh funds for developments,' said the official. The cut-off date is 1993, as suggested by the Delhi MPs other than Jagmohan. Illegal constructions carried out after March 31, 1993, would be demolished. It means that Jagmohan's plan to clean Delhi of encroachments will not really happen. There are more than 1,000 such colonies which came up during Delhi's population boom and arrival of migrant labour in the late Seventies and throughout the Eighties. Jagmohan was in favour of dismantling each and every one of them. But now, he has veered around to accept a majority decision. A number of Bangladeshi colonies may be regularised in the process, sources said.