This is Business Today's sixth ranking of Best CEOs in India.

Presenting the BT-PwC India list of India's Top 100 CEOs.

Developed markets together now contribute 48% to Lupin's revenue (the bulk, no doubt, coming from the US) and emerging markets another 19%, while the domestic market's share has shrunk to 26 per cent from 31 per cent five years ago.

Vineet Nayyar's strategy to bulk up and diversify the offerings of Tech Mahindra through mergers and acquisitions has transformed the company, but there are big challenges ahead.

Sunil Duggal's success lies in creating a template for transition of family business into a professionally-run growth company.

The Genomals have become trusted partners of Jockey all across Asia, becoming billionaires in the process.

Eicher under Siddhartha Lal is getting ready to conquer more and more frontiers.

Shikha Sharma's stint at Axis Bank has yielded dramatic results.

India is on the cusp of economic growth; the onus is on the government and its citizens to walk the path towards sustainable prosperity.

After a 15-year wait and watch game, Sanjay Sagar-led JSW Energy is uniquely positioned to explore organic and inorganic growth opportunities in the power sector.

Salil Singhal of agri products' major PI Industries believes it is important to be the best and not necessarily the biggest.

S Varadarajan, who rose up the ranks from a junior officer to head one of India's leading oil marketing companies, will leave behind a well-oiled legacy when he retires next year.

Between April 1 and December 10, 2015, 3,141 villages have been electrified, while work is on in 1,691 others. \"We are trying to make the entire process both transparent and dynamic,\" says Rajeev Sharma, Chairman and Managing Director, Rural Electrification Corporation. 

Rajeev Jain has transformed a small auto finance business into a well-diversified financial services company.

N Chandrasekaran has snatched a first mover advantage for TCS in the digital space, but has to contend with competition that is fast getting its act together.

KBS Anand is taking Asian Paints on a journey to consumers' kitchens and bathrooms, in a bid to future-proof its paints business.

Jayadev Galla is readying his flagship company Amara Raja Batteries for market leadership in India and to go beyond exports with plans to build physical presence aboard.

Idea Cellular MD Himanshu Kapania has transformed the telco from a pure-play voice operator to one with a more balanced portfolio between voice and data. Over the past three years, Idea has built its data capabilities.

 A CEO today has to constantly worry about the introduction of a new product or service that would make his current offerings obsolete in no time.

For better comparability, we revisited our groupings this time. Companies were split into four categories based on their total income - super large, large, mid-sized and small - within each sector and overall.