New Delhi, March 23 -- The combined market capitalization of nine out of the top 10 most-valued companies surged by Rs.3,06,243.74 crore last week, driven by a bullish trend in equities. ICICI Bank and Bharti Airtel emerged as the biggest gainers.

During the same period, the BSE benchmark index jumped 3,076.6 points (4.16%), while the NSE Nifty climbed 953.2 points (4.25%).

ICICI Bank recorded the highest market cap increase among the top firms, adding Rs.64,426.27 crore to reach Rs.9,47,628.46 crore. Bharti Airtel's valuation rose by Rs.53,286.17 crore to Rs.9,84,354.44 crore.

HDFC Bank's market cap grew by Rs.49,105.12 crore, reaching Rs.13,54,275.11 crore. Reliance Industries gained Rs.39,311.54 crore, pushing its valuation to Rs.17...