The combined market valuation of six of the 10 most valued Indian companies declined by Rs 740.34 billion last week, led by IT major TCS which took the largest hit of Rs 251.40 billion.
For the trading week ended Thursday, Reliance Industries Ltd (RIL), TCS, HUL, Infosys, SBI and ICICI Bank witnessed a decline in their market capitalisation (m-cap), while HDFC Bank, ITC, HDFC and Maruti Suzuki India were on the gainer's side.
Stock markets were closed Friday for 'Gurunanak Jayanti'.
The market valuation of Tata Consultancy Services (TCS) slumped Rs 251.40 billion to Rs 6811.5 billion at close on Thursday.
ICICI Bank's valuation tumbled Rs 99.18 billion to Rs 2266.07 billion and that of SBI went down by Rs 68.71 billion to Rs 2522.08 billion .
Maruti's valuation advanced by Rs 23.53 billion to Rs 2238.39 billion and that of HDFC Bank rose by Rs 18.99 billion to Rs 5450.35 billion.
The m-cap of HDFC went up by Rs 17.54 billion to Rs 3.21 trillion.
Over the last week, the BSE 30-share index fell by 476.14 points to close at 34,981.02 on Thursday.