Re: Day after shaadi..
Depends on family traditions. Usually a big breakfast (sometimes with both the grooms and brides side), sometimes only the grooms side).
One relatives next day was the most ideal! Both sides together for a big brunch then just hanging out and relaxing the entire day. Some people make it an "event" day--maybe singers performing....traditional music......etc etc
Some families have the valima the next day (if they was the wedding all in one weekend).