Net loss came in at 2.38 billion rupees ($33.38 million) for the October-December quarter, compared to a loss of 1.30 billion rupees in the year-ago period.
Revenue from operations fell about 6.5% to 10.70 billion rupees.
Earlier this year, RCom said it remained "fully committed" to settle dues with Swedish telecom gearmaker Ericsson from the proceeds of wireless assets sale to Reliance Jio Infocomm Ltd.
*Reliance Group companies have sued HT Media Ltd, Mint’s publisher, and nine others in the Bombay high court over a 2 October 2014 front-page story that they have disputed. HT Media is contesting the case.