At least 40 people have fallen ill after consuming food at a religious function near Hajo in Kamrup district on Saturday. The individual religious function took place at a house on Friday night. After the puja, the invitees consumed 'prasad' and started complaining of uneasiness. Over 40 people suffered from vomiting and loose motion. Altogether 10 persons have been released from the hospital while 30 others are undergoing treatment.