There are two functions which follow the nuptial ceremony and the wedding recption. One is the wedding dinner which follows the reception. This dinner is only for close relatives and friends of the family who are invited specifically. The other function takes place next morning at home or in a monastery. This is the offering of merit meal to monks, performed to gain merit for the couple at the beginning of their married life.
Monastery receptions are very simple and more religious.
People don't dress so richly and greet the new couple and parents, eat as much as you like and chat with others. But guests still need to wear formal dress. Home wedding reception is a grade less formal than a hotel wedding. It is more relaxed. The music is less ear- splitting.