Roto Pumps shares were locked in upper circuit for second straight day, up 20 per cent at Rs 143 on the BSE, on the back of delivery-based buying. The stock of industrial machinery company zoomed 44 per cent in the last two trading days, in an otherwise range-bound market. In comparison, the benchmark S&P BSE Sensex was up 0.25 per cent at 39,078 levels.
The trading volumes on the counter jumped eight-fold with 1,32,000 shares changing hands till 11:59 am, as compared to 16,000 shares that were being traded daily in past two weeks on the BSE. There were pending

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