Wildlife minister Gamini Jayawickrama Perera, his deputy Sumedha G. Jayasena and minister Mangala Samaraweera will be present on the occasion.
The night safari to watch nocturnal animals at the zoo is open from 7.00 pm to 10.00 pm on Fridays, Saturdays and Sundays.
Tickets are priced at Rs. 200 per adult and Rs. 100 per child.
The trip can be done by foot, or Rs. 2,000 will have to be paid per hour for an electric car with seating facilities for eight.
Director general of the zoo Dhammika Malsinghe said the night safari would include many items such as feeding Bengali tigers, posing for pictures with reptiles and fish massage.
Visitors also can taste a dinner consisting of hoppers, string hoppers, roti, parata and kottu.