Sri. Sardar Patel wrote to RSS chief M.S. Golwalkar on September 11, 1948: 

“Organizing the Hindus and helping them is one thing but going in for revenge for its sufferings on innocent and helpless men, women and children is quite another thing...

All their speeches were full of communal poison. It was not necessary to spread poison in order to enthuse the Hindus and organize for their protection.
As a final result of the poison, the country had to suffer the sacrifice of the invaluable life of Gandhiji. Even an iota of the sympathy of the Government, or of the people, no more remained for the RSS. In fact opposition grew. Opposition turned more severe, when the RSS men expressed joy and distributed sweets after Gandhiji's death. Under these conditions it became inevitable for the Government to take action against the RSS.

Since then, over six months have elapsed. We had hoped that after this lapse of time, with full and proper consideration the RSS persons would come to the right path. But from the reports that come to me, it is evident that attempts to put fresh life into their same old activities are afoot."