Synopsis:
Raj, Veer and Aryan are three fun loving, good time guys married to Bhavna, Diya and Sonia respectively. However their wives see life very differently to them. Bhavna prefers prayer to partying, Diya is too wrapped up in her desire to be an actress and Sonia is an authoritarian. Into the men's lives come three beautiful ladies Madhuri, Dimple and Rekha - they are an accident waiting to happen if the men cannot resist them. Shaadi No.1 is a true masala comedy and will provide fun for the whole family. (taken from ugccinemas.co.uk)
Special thanks to Nafeesa for submitting this spoiler!
SPOILER:
From what I remember, the three wives go out to a disco with their three hubbys and the girlfriends are also there! With a lot of to-ing and froing, they manage to keep the situation under control, but the wives end up finding out that they all had girlfriends. Which in turn means that they end up trying to commit suicide by standing on a railing so high off the ground.
The wives realise how much they love their husbands, and forgive them, but calamity appears when the wives are hanging for dear life off their hubbys, but luckily, Sanjay's Character catches them as they fall, while the three amigos end up falling onto trucks and dog kennels, etc.
But all's well and ends well!