O Meri Jaan is a heartfelt song from the 2007 Bollywood film Life in a Metro. Sung by KK, the song is in the key of G with no capo, using the classic G-family chords: G, Em, Am, D, C, and F.
The G–Em–Am–D verse progression is one of the most common chord sequences in pop music worldwide. If you know these four chords you can play a huge number of songs. The F chord in the bridge is a full barre — you can substitute Fmaj7 (xx3210) if needed.
O Meri Jaan is in the key of G, using G, Em, Am, D, C, and F. No capo is needed.
Yes, it is beginner level with four common chords in the verses. The F chord in the bridge is the only challenge.