UltraTech Cement has entered into an agreement with Golden Rock Railway Workshop based in Tamil Nadu, to take its waste for co-processing. The workshop expects to provide Ultratech with approximately 400t of zero-value non-hazardous waste over the next 3-6 months, according to The Hindu.

"It is a win-win situation for both organisations as the zero-waste would serve as an alternative fuel in the cement kiln," said a senior workshop official.

The waste had accumulated at the workshop premises for over a decade, and is a result of the renovation of diesel locomotives and passenger coaches. The plans to supply UltraTech with an alternative fuel have been approved by the Tamil Nadu Pollution Control Board.