Well according to me it falls under advertising contract .
Please Refer circular no. 715 dt 8/8/95 of CBDT
" Question 18 : Whether deduction of tax is required to be made under section 194C for sponsorship of debates, seminars and other functions held in colleges, schools and associations with a view to earn publicity through display of banners, etc., put up by the organisers ?
Answer : The agreement of sponsorship is, in essence, an agreement for carrying out a work of advertisement. Therefore, provisions of section 194C shall apply "
And the intention of the event is not let-out or sub-let the property, it is just providing a platform for advertisement so it should fall under 194 C