** Mamata Machinery's MAMA.NS stock surges 159% to 630
rupees from IPO price of 243 rupees in trading debut
** Stock opened at 600 rupees
** Manufacturer of plastic bags and packaging machines is
valued at $181 million at current levels; it had targeted a
valuation of $70 million
** MAMA's strong global presence, its consistent growth in
revenue and profit underscore its robust fundamentals - Shivani
Nyati, Head of Wealth at Swastika Investmart
** Company's 1.79-billion-rupee IPO was subscribed 195
times, exchange data shows
(Reporting by Nishit Navin in Bengaluru)
((nishit.navin@thomsonreuters.com;))