The stock of Bharti Airtel rallied about 11.5 per cent last week despite the company’s weak September 2017 quarter results. The company’s profit in the quarter fell 77 per cent y-o-y and revenue declined 12 per cent, due to the impact of intense competition. The stock has been rallying the past few weeks. The market seems positive about Airtel’s prospects amidst the sector consolidation — a vi...