Amid political sparring over a report alleging that BJP chief Amit Shah's entrepreneur son Jay Shah benefited after the party came to power, the Rashtriya Swayamsevak Sangh (RSS) has clarified its stand. The BJP's ideological mentor today said the allegations have to be evidenced to make them worthy of investigation. RSS joint general secretary Dattatreya Hosabale today said on Jay Shah: "If there are corruption allegations against anyone, they should be investigated. But there has to be prima facie evidence of wrong-doing."