Is it true that Yes Bank and IDFC First bank have the biggest exposure to Vodafone Idea?

Not in absolute numbers but in percent exposure yes. For example, Yes Bank exposure to Vodafone India is 2.44% of its loan book while for IDFC First Bank the exposure to Vodafone Idea is 2.91% of its loan book. Of course, the highest absolute exposure to VI at Rs.11,000 crore is with the State Bank of India. There have been constant concerns over the sustainability of VI after they lost the AGR review case.