The stock went down by as much as 3.83 per cent to Rs 74.05 on BSE.
On NSE, it lost 3.58 per cent to Rs 74.05.
Idea Cellular, country's third-largest telecom operator, yesterday announced an 88 per cent plunge in consolidated net profit at Rs 91.46 crore in the September quarter due to higher expenses.
Net profit stood at Rs 762.27 crore in the corresponding three-month period a year ago.
"Higher network running expenses due to accelerated expansion, increased subscriber acquisition and servicing cost, and multiple inflationary pressures resulted in overall operating cost increase," the cellular firm said in a statement.
The revenue of Idea Cellular, however, increased by 7.2 per cent to Rs 9,300.23 crore in the reported quarter from Rs 8,675.37 crore in the year-ago period.
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