Step 1: Understand the context.
The Reserve Bank of India (RBI) identified 12 large corporate borrowers with high levels of non-performing assets (NPAs) for immediate insolvency resolution under the Insolvency and Bankruptcy Code (IBC).
Step 2: Focus on the case of Lanco Infratech Ltd.
Among these borrowers, Lanco Infratech Ltd. was one of the first companies against whom insolvency proceedings were initiated.
Step 3: Bank that initiated the process.
IDBI Bank was the lead lender that filed for insolvency proceedings against Lanco Infratech Ltd. as directed by the RBI.
Step 4: Eliminate incorrect options.
- (a) State Bank of India → Largest lender but not the initiator in this case.
- (b) IDBI Bank → Correct; started insolvency resolution process.
- (c) Punjab National Bank → Not the lead initiator.
- (d) Bank of India → Not involved in initiating this process. \[ \Rightarrow \boxed{\text{IDBI Bank is the correct answer.}} \]
Rather than recalling the fact directly, each bank's typical role as lender to large infrastructure borrowers like Lanco Infratech can be considered.
The lead role in this specific filing belonged to IDBI Bank, matching option 2.
Hence, the correct answer is IDBI Bank.