Fasting: The most common ritual observed all over during Janmashtami is fasting by devotees on the day of the festival. Devotees fast for the entire day and break it after the birth of Lord Krishna at midnight. People prefer to have only milk and milk products as they were the favourite of Lord Krishna. Some devotees of Lord Krishna go to the extent of keeping 'Nirjal' fast- It involves fasting without having a single drop of water. There are other ardent followers , who keep the fast for two days in the honour of Lord Krishna.
Chanting: Devotees indulge in continuous chanting all day long. They chant mantras and shlokas to please the lord. Religious atmosphere prevails everywhere. Devotees highlight his feats and his divine characteristics. Chanting of 108 names of Lord Krishna is another ritual that takes place in various temples. Chanting of names is accompanied by showering of flowers on the idol of Lord Krishna.
Devotional Songs and dances Another popular ritual is singing of songs (bhajans) in the praise of Lord Krishna. Bhajans are an important custom of the midnight celebration during the festival. Dances are also performed by devotees depicting the various events of Lord Krishna.
Staging of Plays or Dramas of Lord Krishna Plays depicting various events and accomplishments of Lord Krishna during his lifetime is another important custom during the festival. Both professional artists as well as amateurs stage plays at various places that are widely attended by devotees.
Preparation of Sweets According to legend, Lord Krishna was very fond of milk and milk products like butter and buttermilk. He was also fond of Sweets like Kheer, Pedhas etc. Therefore devotees all over make sweets during the festival to please the Lord.