Gujarat cement plants substituted coal with 350,000t of plastic waste in 2017-18, the highest volume across all Indian states.

"We facilitated management of 120,000t of plastic waste in 2017 as alternate fuel in our 14 plants across India, more than half of which was in Gujarat plants alone," according to Ulhas Parlikar, director, Geocycle India.

India’s Central Pollution Control Board has authorised 54 plants to use plastic for co-processing, with 15 plants currently doing so, according to The Times of India.