Explained: Did Mahatma Gandhi ask Vir Savarkar to file mercy petition?

Political uproar began after Defence Minister Rajnath Singh's statement on Vir Savarkar. Rajnath Singh said that Savarkar filed a mercy petition as Mahatma Gandhi asked him to do so. But the opposition is denying the statement and is claiming that wrong facts were being presented. But what is the truth? Vir Savarkar's grandson explains it all.