Delhi Deputy Chief Minister Manish Sisodia on Thursday convened a review meeting to take stock of the preparations ahead of the monsoon season and warned that any laxity by officials will not be tolerated. According to an official statement, a sump of 7.5 lakh litres capacity and a 600 horsepower permanent pump house is being constructed at Pul Prahladpur underpass to do away with waterlogging problem there.