In Sikhism, alcohol isn’t allowed. That’s a fairly clear guideline from the Rehat Maryada (the Sikh code of conduct). So, a lot of Sikh weddings, especially if there’s an Anand Karaj at the Gurdwara or a more traditional family vibe, will be completely alcohol-free.
But not everyone does things the same way. Some couples choose to keep the ceremony dry but serve alcohol at the Sikh wedding reception. Others might keep it low-key or have it in a separate area out of respect for elders or more religious family members.
The key is: there’s no one-size-fits-all answer. It really comes down to what feels right for you and your people.