The stock plunged by 7.28 per cent to hit its one-year low level of Rs 105.60 on BSE.
At NSE, shares of the company tanked 7.41 per cent to Rs 105.50 -- its 52-week low.
Idea Cellular had yesterday announced a marginal decline in consolidated net profit at Rs 764.2 crore for the quarter ended December 2015 due to decline in voice and mobile data rates.
"Despite the healthy subscriber growth, we have witnessed intense rate pressure. Our voice rate declined by 10.6 per cent and mobile data rates by 17.2 per cent during the Q3 FY 16," Idea Managing Director Himanshu Kapania said.
The net sales increased by 12.37 per cent to Rs 9,009.69 crore during the reported quarter from Rs 8,017.47 crore.
