Bharti Airtel Q4 Results 2018:\u00a0India\u2019s largest telecom company Bharti Airtel on Tuesday reported that its net profit for the fiscal fourth quarter fell to lowest in 15 years, as competition from rival Reliance Jio continued to hurt margins. Airtel's net profit for January-March quarter of 2018 fell 78% on-year to Rs 83 crore, but still beat\u00a0a CNBC-TV18 estimate of Rs 103 crore net loss. The Sunil Mittal-controlled\u00a0company posted a revenue of Rs 19,634 crore in January-March quarter, down 10.5% year-on-year. The company's consolidated revenue was primarily\u00a0impacted by a drop in its India revenue, which, in turn, was hurt by a drop of 13.5% in mobile business sales, Bharti Airtel said in a statement. Bharti Airtel's MD and CEO, India & South Asia, Gopal Vittal once again hit out at rival Reliance Jio, without naming it, to press that the sector remains under pressure from the intense competition.\u00a0"The telecom industry continues to witness below cost, artificially suppressed pricing. Industry revenues were further adversely impacted this quarter due to the reduction in International termination rates," Gopal Vittal said in the statement. On the other hand, Bharti Airtel saw an increase in its South Asia revenue and Africa revenue as well, while it also reported an uptick in most operating stats, including customer addition, usage, etc. Here are the key highlights from Bharti Airtel's Q4 2017-18 results: Consolidated revenue: Rs 19,634 crore vs Rs 21,934.6 crore, down 10.3% year-on-year. EBITDA: Rs 7034.1 crore vs Rs 7992.8 crore, down 12%\u00a0year-on-year. Net Income: Rs 82.9 crore vs Rs 397.3 crore, down 78% year-on-year. EBITDA margin: 35.8% vs 36.8%\u00a0year-on-year. Debt-to-equity ratio: 1.37 vs 1.35\u00a0year-on-year. India mobile revenue: Rs 10353.2 crore vs Rs 12971.8 crore, down 20%\u00a0year-on-year. Africa consolidated revenue: US$791 million vs US$715 million, up 11%\u00a0year-on-year on underlying basis. Total customers: 413.8 million as on March 31 vs 394.24 million as on December 31, up 5% on quarter. India mobile customers: 304.19 million as on March 31 vs 290.11 million as on December 31, up 4.9% on quarter. Africa mobile customers: 89.26 million\u00a0as on March 31 vs 84.13 million\u00a0as on December 31, up 6.1% on quarter. India mobile usage: 592.66 billion minutes vs 381.24 billion minutes, up 55.5% year-on-year. Africa\u00a0mobile usage: 44.69 billion minutes vs 33.48 billion minutes, up 31.5%\u00a0year-on-year. ARPU: 116 vs 158, down 26.7%\u00a0year-on-year. India mobile voice usage per customer: 670 minutes vs 471 minutes, up 42.3%\u00a0year-on-year. India mobile data customer base: 86.1 million vs 57.36 million, up 50%\u00a0year-on-year. India mobile broadband customer: 76.58 million vs 42.72 million, up 79.3%\u00a0year-on-year. India mobile data on network: 1.54 trillion MBs vs 225.11 billion MBs, up 584%\u00a0year-on-year. India mobile data usage per customer: 6585 MB vs 1331 MB, up 394.7%\u00a0year-on-year.