The combined market capitalisation of six of top 10 most-valued Indian firms dropped by ₹2.2 lakh crore over the last week, with Reliance Industries being the top loser. As Sensex fell by 294.64 points in the week, m-caps of RIL, TCS and LIC collectively fell by ₹1.67 lakh crore. Meanwhile, HDFC Bank, ICICI Bank, Bharti Airtel and SBI's m-caps rose.