Dear Mr. Sachdeva
I respectfully and humbly differ with the views expressed by Hon'ble subject experts in your matter.
In my view, the receipt of sponsorship amount by your Indian proprietorship firm is against 'sponsorship services provided by' your Indian firm and not against any 'services received' by it. This fact, therefore, makes your Indian entity a service provider rather than a service recipient.
It is interesting to note that sponsorship service is one category that has created doubts ever since its inception as to who is the service provider and who is the receiver of services. Please note that in case of sponsorship services, the provider is the person who 'receives the sponsorship money' and the person paying the money is 'service receiver'. Even technically, it is only a receiver of services (here sponsorship service in your case) who makes the payment (the foreign companies, in your case).
Therefore, RCM applicability is absolutely out of the equation since your proprietorship firm is a service provider here and in terms of Notification No. 10/2017 (ITR), RCM (if at all applicable) is on service receiver.
Now coming to the taxability of your matter, please refer section 13(5) of the IGST Act which specifies the place of supply of services supplied by way of admission to, or organisation of a cultural, artistic, sporting, scientific, educational or entertainment event, or a celebration, conference, fair, exhibition or similar events, and of services ancillary to such admission or organisation, shall be the place where the event is actually held.
In my humble opinion, therefore, your firm must charge tax on such sponsorship amount separately from the foreign companies.
Respected experts may kindly correct my version and I shall be more than happy to rectify the errors, if any, in my understanding.
Regards,
Brijesh Verma