Telus said on Thursday its costs of goods and services purchased rose 5.3 percent in the quarter ended Dec. 31, while depreciation expenses rose 2 percent. The higher costs reflected "significant" investments in broadband networks as well as acquisitions, Telus said.

Telus has been spending heavily to attract more wireless subscribers amid fierce competition from BCE Inc, Shaw Communications and Rogers Communication.

Telus added 121,000 wireless postpaid customers, about 34,000 more than a year ago.

The company said its postpaid churn — the amount of defecting customers — rose to 0.99 percent from 0.98 percent in the year-earlier quarter, still among the industry's lowest rates.

Telus's net income rose to C$282 million ($224 million) from C$87 million a year earlier. Excluding one-time items, Telus earned 55 Canadian cents per share, missing analysts' average estimate of 57 Canadian cents, according to Thomson Reuters I/B/E/S.

Operating revenue rose to C$3.48 billion from C$3.31 billion.

($1 = 1.2592 Canadian dollars)

(Reporting by Nishara Karuvalli Pathikkal; Editing by Sai Sachin Ravikumar)