Nifty Bank crashes by 5,000 points. PNB, SBI, HDFC Bank fall up to 20%

Nifty Bank fell to 46,077.85, with all 12 stocks in the index trading in the red. Heavyweights HDFC Bank and ICICI Bank were among the top laggards. State Bank of India (SBI) also contributed to the downfall in good stead.