The correct answer is option B. Natarajan Sundar.

Natarajan Sundar has been appointed as the Managing Director and CEO of the National Asset Reconstruction Company Limited (NARCL). NARCL is a proposed bad bank that will be responsible for resolving stressed assets in the banking system.

Background of Natarajan Sundar
Natarajan Sundar is a seasoned banker with more than 37 years of experience in the banking and financial sector. He has previously served as the Deputy Managing Director of State Bank of India (SBI). During his tenure at SBI, he was responsible for managing the stressed assets portfolio of the bank and played a key role in the resolution of several large accounts. He has also served as the CEO of SBI Capital Markets, the investment banking arm of SBI.

Role of NARCL
NARCL, also known as the bad bank, is a proposed entity that will take over the stressed assets of banks and financial institutions. Its primary objective is to resolve these stressed assets and maximize their value through various resolution mechanisms such as restructuring, asset sales, and debt recovery. The establishment of NARCL is part of the government's efforts to address the issue of non-performing assets (NPAs) in the banking system and improve the financial health of banks.

Appointment of Natarajan Sundar
Natarajan Sundar's appointment as the Managing Director and CEO of NARCL is a significant development in the establishment of the bad bank. His extensive experience in managing stressed assets and his understanding of the banking sector make him well-suited for this role. As the head of NARCL, he will be responsible for overseeing the resolution of stressed assets, coordinating with banks and financial institutions, and implementing the government's vision to clean up the banking system.

Conclusion
The appointment of Natarajan Sundar as the Managing Director and CEO of NARCL is expected to bring valuable expertise and leadership to the establishment and functioning of the bad bank. His vast experience in the banking sector will be crucial in addressing the issue of stressed assets and improving the overall health of the banking system.