NTPC, the country's largest power producer, dropped nearly 10% on Monday after Central Electricity Regulatory Commission (CERC) announced the final tariff order.

The CERC has released final regulations for tariff determination applicable from 2014-15 to 2018-19 for projects based on an assured return on equity (RoE) business model.

Shares of the company are trading at Rs 119, down Rs 13.15, or 9.88% at the Bombay Stock Exchange (BSE) on Monday at 11.21 a.m.

The scrip has touched an intra-day high of Rs 129.60 and low of Rs 116.95. In the earlier session, the shares lost at Rs 131.50.