The National Green Tribunal (NGT) has directed all schools and colleges in Delhi to install rainwater harvesting systems within two months.
The green court said a fine of Rs 5 lakh will be imposed if the institutions fail to do so.
The NGT's announcement comes after Supreme Court-appointed Environment Pollution Control Authority (EPCA) ordered lifting of a ban on entry of trucks and on construction activities in the city as the air quality improved to "very poor" today.
The hike in parking fees to discourage use of private vehicles was also rendered "ineffective" by the environment body due to lack of public transport and laxity in acting against illegal parking
(With inputs from ANI and IANS)