Too many are there! Just putting down some which is on top of my head.
The first time he hears her voice and first time he sees her and "Piya Tose"
The scene where Abhi comes to Goenka house and stands up against Birla family that Akshara won't be dragged in the fake molestation charges case.
Their song sequences Jiya, Bole Chudiya, Shama ko Jaise Deewana, Gulabi, Saami and wagerah wagerah.
"Koi jo mila tha mujhe aisa lagta tha" is one of the best sequences ever made.
The scene where Abhi knows Akshara saved him and goes to meet him, and the legendary paed se latka confession scene.
10 Min Date
When he comes first time as Jamai sa before marriage for a ritual, and she completely teases him with the Rajasthani avataar.
The marriage entry and him taking her uthake to the mandap.
"Ishaaro Ishaaro mein" sequence. I know you know.
The scene where they meet after one year gap. It is so well shot. Where they fall in that big decorative water tub.
"Praanpriye" and "Praanpriye ki bacchi"
The phone pe "muah muah muah" wala scene.
First time her driving bike and he sitting behind her.
I love them soooo much. I can right on and on and on.