The 2+2 Bilateral Dialogue was held in September 2018 between

The 2+2 Bilateral Dialogue was held in September 2018 between

External Affairs and Defence Ministers of India with their US counterparts
Finance and Defence Ministers of India with their Russian counterparts
Home and Defence Ministers of India and their counterparts in Pakistan
External Affairs and Defence Ministers of India with their counterparts in Pakistan
This question was previously asked in
UPSC CDS-2 – 2018
The “2+2 Bilateral Dialogue” is a format of meeting between the External Affairs Minister and Defence Minister of India and their counterparts from another country. The first such dialogue between India and the United States was held in New Delhi in September 2018.
This dialogue mechanism is considered a high-level platform for discussing and coordinating on critical foreign policy and security issues.
India currently holds 2+2 dialogues with its key strategic partners including the USA, Japan, Australia, and Russia.