"The two projects involve changeover of the feedstock of the existing 900 tonnes per day ammonia plants from fuel oil to natural gas," said L&T in a regulatory statement.

Both projects will be executed concurrently and are expected to be commissioned by January 2013.

With this project, L&T has now secured three feedstock conversion projects in the fertiliser sector.

The L&T scrip was trading 0.52 percent lower at 1,417. points at 12.06 p.m. on the Bombay Stock Exchange.