The Centre for Science and Environment (CSE) has accused the Indraprastha Gas Limited which was on September 9 hauled up by the Supreme Court for providing misleading information on status on CNG supply of "manipulations to cover up its ineptitude". CSE, which has been actively campaigning for introduction of cleaner fuels, has stated that IGL's approach not only threatens its own interest but have also put the nascent CNG programme in the Capital in peril.