There are endless examples of characters in DMG who play cupid in some form or the other in various relationships (especially Armaan&Riddhima)...
For Armaan&Ridz:
- Minnie
- Gappu
- Nana
- Zoya
- Atul (unknowingly...through the advice he gives)
For Shashank&Padma
-Anjali
-Nani
For Shubankar&Kirti
- All interns (esp male ones) when they sing "Ishq hai" LOL
Can you think of anymore?