As the BSE Sensex lost over 54 points last week, six of the top-10 most valued companies saw a combined erosion of Rs 25,501 crore from their market capitalisation.
The m-cap of ONGC slumped Rs 12,576 crore to Rs 2,63,509 crore, becoming the top loser.
Infosys' market value plunged Rs 5,481 crore to Rs 1,89,153 crore, while TCS lost Rs 3,056 crore to Rs 4,16,337 crore.
The market valuation of HDFC declined Rs 2,291 crore to Rs 1,31,364 crore, while ICICI Bank's value fell by Rs 1,813 crore to Rs 1,38,328 crore. CIL's m-cap went down by Rs 284 crore to Rs 1,66,373 crore.
On the other hand, ITC added Rs 7,708 crore to Rs 2,83,432 crore in its value, while Wipro's m-cap surged Rs 5,205 crore to Rs 1,40,106 crore.
Reliance Industries' valuation rose by Rs 711 crore to Rs 2,87,089 crore and HDFC Bank added Rs 48 crore to Rs 1,75,460 crore.
TCS remained at top with highest m-cap, followed by RIL, ITC, ONGC, Infosys, HDFC Bank, CIL, Wipro, ICICI Bank and HDFC.
The BSE 30-share benchmark index Sensex ended the week 54.48 points lower at 21,755.32.