Quite unlike any other Indian software company, Wipro is finding that oil is indeed its black gold. The energy and utilities space, which is not a traditional bread-winner for IT services companies, is proving to be so lucrative for Wipro that it is on the verge of earning the Bangalorebased company $1 billion (Rs 5,400 crore) in annual revenue. Wipro's energy and utilities vertical, contributing around $900 million, or 15% of total sales, is now the fastest-growing business unit thanks to the April 2011 acquisition of the oil and gas practice of US-based Scientific Applications International Corp (SAIC) for about $150 million.

Source - http://economictimes.indiatimes.com