The Indian Institute of Management-Calcutta has achieved 100 per cent final placements for the 2014-16 batch in less than three days."For the largest batch of 439 students among the older IIMs, a whopping total of almost 500 offers were made during the entire process, including 21 international offers," the institute said in a statement.IIM-Calcutta remained unchallenged as the finance campus of India, registering over 100 offers in the sector. Bank of America, Merrill Lynch, Citibank, BNP Paribas, Deutsche Bank, JPMC, Avendus Capital, ICICI Securities, Kotak IBD, Edelweiss and other finance firms recruited students from the campus, while BlackRock and MasterCard were the first time recruiters for finance roles.Consulting firms continued their dominance in the campus with over 20 per cent of the total offers, it said.The major firms hiring in the consulting sector included Boston Consulting Group (BCG), Bain & Co., McKinsey, AT Kearney and Accenture Management Consulting, with Bain & Co. emerging as the largest recruiter, it said.Sales and Marketing contributed 19 per cent of the offers. Firms, which recruited students include Hindustan Unilever (HUL), Procter and Gamble (P&G), Reckitt Benckiser (RB), Johnson and Johnson (J&J), STAR India, Asian Paints, ITC, Phillips etc, the release said.The steady growth of the e-commerce sector was echoed in the placement statistics, it said.Over 20 per cent of the offers were made by e-commerce and web-based start-ups like Amazon, Snapdeal, Flipkart, Paytm, Olacabs, Uber, RedBus etc, the release added.