Mobikwik's Co-founder Upasana Taku has defended the digital wallet startup's recent valuation of $327 million as opposed to the expected $1 billion. "It's a good goal to have, but we are not really a valuation-driven company. Our competitors are valuation-driven," she said. In June, Taku had confirmed MobiKwik was in talks to raise $100 million at over $1 billion valuation.