** Shares of Roto Pumps Ltd ROTP.NS rise as much as 12.8%
to a record high of 794 rupees
** ROTP trims some gains, last up around 10%; set for best
day since June 21
** Pump maker's relative strength index seen above 70,
indicating stock is overbought
** Stock logs most active session on record with around
615,000 shares changing hands by 2:22 p.m. IST
** Stock up nearly 67% so far this year
(Reporting by Nandan Mandayam in Bengaluru)
((Nandan.Mandayam@thomsonreuters.com; Mobile: +91 9591011727;))