The American Connection Diner in Kalkaji offers monster Bugger. Check out!
Burger singh, big yellow door(byd cheeze burger)
Smoke house delli, they have few options for burgers, you have choice in between white flour bun and whole wheat bun , it's really juicy & delicious
Feast house at Karol bagh exactly out from metro and it's there
Rooh Burger Cafe, CP
The burger club
Johnny Rockets is the best option and they serve the best milkshakes in Delhi...