Reuters Market Eye - Carborundum Universal Ltd surges as much as 14.9 percent to a record high of 217.35 rupees.
HDFC Midcap Opportunities fund bought 1 million shares of the company at 188 rupees in a block deal on Tuesday, NSE data shows.
That should raise HDFC Mutual Fund's stake in the abrasives maker to 4.61 percent from 4.08 percent, according to Thomson Reuters calculations.
(Reporting by Abhishek Vishnoi)