The Sensex reclaimed 30,000 mark Wednesday morning, as a few key stocks, led by Reliance Industries, opened on a firm note even as the mood remained a bit cautious with investors looking ahead to the central bank's monetary policy review, due tomorrow.

The BSE benchmark Sensex rose to 30,007.48, gaining nearly 100 points over its previous close, but retreated soon, and is currently at 19,895.86 (down 14.36 points or 0.05%) after declining to a low of 29,817.69. The Nifty50 of the National Stock Exchange, which rose to a new high at 9264.95, is now at 9240.70, up 2.85 points or 0.03%.

In the currency market, the rupee opened at 65.07 against the U.S. dollar, down 5 paise from its previous close of 65.02.

Reliance Industries is trading 1.3% up. NTPC is up 1.4%, Cipla is gaining 1.3%, Adani Ports is trading 1.2% up, Maruti Suzuki and Tata Steel are gaining around 1% each and Lupin is up 0.75%.

Hindustan Unilever, Power Grid Corporation, Hero Motocorp, ONGC and Wipro are modestly higher.

Bharti Infratel, up 2.3%, is the top gainer in the Nifty50 index. Hindalco is up 1.75% and Grasim Industries is rising 1.6%. Yes Bank, Kotak Bank, Bank of Baroda, Zee Entertainment Enterprises, Bosch and UltraTech Cement are gaining 0.5% - 1%.

HDFC, Dr Reddy's Laboratories, Asian Paints, State Bank of India and ICICI Bank are down 1% - 1.6%. ITC, GAIL India, Mahindra & Mahindra and Infosys are modestly lower.