Bharti Infratel displaced Siemens from the top gainer position the moment it announced its Q4FY15 performance. The stock had opened muted at Rs.376 levels but soon shot up to Rs.396, the moment numbers came in. It is currently 4% up at Rs.388 levels.  

A tower company and as at 31^st March 2015, given its 42% interest in Indus, it has an economic interest in the equivalent of 85,892 towers. And it posted a good set of numbers. Revenue rose 6% at Rs.2947 crore and net profit was at Rs.558 crore, up 18%. Cash profit rose 22% at Rs.1246 crore. The market was more enthused with the margins – EBITDA was pup 14% at Rs.1329 crore and operating margin rose from 41.6% to 45.1%.