Tata Power on March 17 said that it has expanded its rooftop solar service to 90 cities across the country. The big rollout from Tata Power comes at a time when consumers across all major categories including commercial, industrial, residential and public sector are adopting solar energy as a reliable and sustainable solution to meet their energy needs that also holds tremendous potential to save costs.

"Preparing for a future-ready India, Tata Power is making a big push for a stronger adoption of clean energy by expanding its rooftop solar offerings to 90 cities," the power major said in a filing to BSE.

Shares of the company declined Rs 1, or 2.84%, to settle  at  Rs 34.20.  The total volume of shares traded  was  1,036,922 at  the BSE (Thursday).