Firm early buying in select heavyweights and tech stocks has seen the index exhibit a positive opening. While the Sensex has added 19 points to 6,473, the Nifty is up 10 points at 2,036.Reliance, on reports of possible settlement issue between the Ambani brothers, has jumped 1.49% (Rs 8) to Rs 561. While ITC has added Rs 5 to Rs 1,290, HLL is up a rupee at Rs 135.Infosys, after dropping sharply yesterday, has resumed with a per cent gain (Rs 20) to Rs 2,182. While Satyam is up a rupee at Rs 391, Wipro is marginally down at Rs 657. Reliance Energy has added 1.22% (Rs 7) to Rs 544, while Tisco is up a per cent (Rs 4) at Rs 412.ONGC, however, is down Rs 4 at Rs 858. HDFC Bank and ICICI Bank are down a per cent each at Rs 526 and Rs 386, respectively.