Answer : 2. "बैंक इंडोनेशिया"
Explanation :

The Reserve Bank of India (RBI) and Bank Indonesia (BI) signed an MoU in Mumbai to promote cross-border transactions using the Indian Rupee (INR) and Indonesian Rupiah (IDR). RBI Governor Shaktikanta Das and BI Governor Perry Warjiyo established a framework to promote the use of local currencies, aimed at enhancing trade, deepening financial integration and strengthening economic ties between India and Indonesia.