<Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (August 2016) (Learn how and when to remove this template message) </Td> </Tr> </Table> <Tr> <Td> </Td> <Td> This article needs additional citations for verification . Please help improve this article by adding citations to reliable sources . Unsourced material may be challenged and removed . (August 2016) (Learn how and when to remove this template message) </Td> </Tr> <Table> Bombay Stock Exchange <Tr> <Td_colspan="2"> BSE </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Td_colspan="2"> </Td> </Tr> <Tr> <Th> Type </Th> <Td> Stock exchange </Td> </Tr> <Tr> <Th> Location </Th> <Td> Mumbai, India </Td> </Tr> <Tr> <Th> Founded </Th> <Td> 9 July 1875 (9 July 1875) </Td> </Tr> <Tr> <Th> Key people </Th> <Td> Shri S. Ravi (Chairman) Ashishkumar Chauhan (MD & CEO) </Td> </Tr> <Tr> <Th> Currency </Th> <Td> Indian rupee (₹) </Td> </Tr> <Tr> <Th> No. of listings </Th> <Td> 5,439 </Td> </Tr> <Tr> <Th> Market cap </Th> <Td> ₹ 150,184.87 billion (US $2.1 trillion) (April 2018) </Td> </Tr> <Tr> <Th> Indices </Th> <Td> BSE SENSEX S&P BSE SmallCap S&P BSE MidCap S&P BSE LargeCap BSE 500 </Td> </Tr> <Tr> <Th> Website </Th> <Td> www.bseindia.com </Td> </Tr> </Table> <Tr> <Td_colspan="2"> BSE </Td> </Tr>

Who is the head of bombay stock exchange
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