Answer : 3. "Bangladesh"
Explanation :

India's Numaligarh Refinery Limited (NRL) opened its first Foreign Liaison Office in Dhaka, Bangladesh, which was inaugurated by Indian High Commissioner Prannoy Verma. NR Managing Director Bhaskar Jyoti Phukan and other officials attended. Verma highlighted the development of India-Bangladesh relations with emphasis on bilateral trade and energy sector cooperation.