"Tata and Bhagwat will attend an event in Mumbai on August 24 organised by the Nana Palkar Smriti Samiti," the news agency quoted a Sangh functionary as saying.
Nana Palkar Smriti Samiti, dedicated to work for the poor patients and their families, is named after Sangh pracharak Nana Palkar.
The samiti has its premises near the Tata Memorial Hospital in Mumbai and has been serving cancer patients from the facility. Tata has visited the premises and is aware of the NGO's work, the Sangh functionary said.
The August 24 event will mark the concluding ceremony of the centenary year celebrations of Nana Palkar.
The development after Congress veteran and former President Pranab Mukherjee attended an RSS event at Sangh's Nagpur headquarters as the chief guest.