Rau, who was chief executive of the company for three years, resigned after the company posted a Rs 200 crore loss for the fiscal year ended March 31, 2016, sources close to the company said.
They said Reliance Nippon Life Insurance, a part of Reliance Capital, had asked Rau to resign after profits slumped from Rs 380 crore in the financial year 2012-13 to a loss of Rs 200 crore in the 2015-16 fiscal.
Rau could not be immediately reached for comments. When contacted a company spokesperson declined to comment.
Rau's resignation was accepted by the Board of Reliance Nippon Life Insurance in a recent meeting and the regulator IRDAI has also been duly informed of the same.
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"Reliance Nippon Life Insurance had sought Anup's resignation for non-performance. The profit numbers had been consistently shrinking and the cost of acquisition was going up substantially. The management decided to make some changes at the top in order to arrest the mounting losses and costs," said a source.
There was also a consistent decline in number of policies sold, which slumped from 7.7 lakh in 2012-13 to 3.6 lakh in 2015-16 along with a low market share of 2 per cent during the fiscal.