Replying to a special call attention motion, the minister said tenders have been invited to clean and supply 40 MLD water from two stone quarries to meet the requirement of Chennai city,.
Tenders have also been invited to dig nine borewells in Neyveli to supply 10 MLD water.
According to Velumani, steps are being taken to supply 90 MLD water from lignite mines in Neyveli and two river beds.
He said bids have been invited to set up water purification plants, supply of water from farm wells and for other projects.
Velumani said water from Krishna river in Andhra Pradesh is also expected to quench the city's thirst.