Bharti Infratel, Container Corp, Lupin, Eicher Motors, Bharat Forge, Marico, Shree Cement and UPL were up 1%-6% each on the NSE.
At 13:35, the Sensex was trading higher by 159 points at the 27,666 mark and the Nifty gained 59 points at 8,378
The stock dipped 8% to Rs 159 on the BSE.
The stock hit a new high of Rs 437, and has zoomed by 93% in the past six trading sessions on the NSE from Rs 226 on May 21.
On May 28, Sundaram Mutual Fund purchased 170,000 equity shares of Ador Welding at Rs 209.50 per share.