Entertainment tax on event held by co-operative hsg society

XYZ is a housing society completing 25 years. They are celebrating this event by giving snacks for which coupons are given to members. Each family is given 2 coupons.

To defray the cost, sponsorship is accepted from various person. eg: cable man, etc.

1. Will this event come under the purview of entertainment tax?

2. Whether sponsorship amount received can be brought in books as a Balance Sheet item or P/L item.