Rs 1,76,000 crore! It is, and was, a curious, controversial, and debatable figure. When the former comptroller and auditor general Vinod Rai estimated that this was the notional loss to the exchequer due to the 2G spectrum scam during the previous UPA regime, it jolted the nation, and proved to be one of the reasons for the downfall of the Congress and its allies since 2014. This week, when the government arm-twisted the Reserve Bank of India to transfer a similar amount from its reserves to bail it out, it rang a bell.