"I reiterate that on my investigation I have found and written in my columns in the New Indian Express that there is no wrong doing by you morally and legally in the Purti matter," Gurumurthy said in his letter.
Gurumurthy, a Chartered Accountant and financial analyst, maintained that he had professionally examined the Purti papers and expressed his professional views.
"But I saw sections of media giving political colour to my professional views," Gurumurthy said.
BJP also stood firm in support of Gadkari, saying he is a social entrepreneur who has worked for the welfare of the farmers of Vidarbha in Maharashtra. "A large number of farmers of Vidarbha were committing suicide. Today they are getting a good price for their sugarcane," BJP spokesperson Ravi Shankar Prasad said.
The party also mentioned the clean chit given by Gurumurthy and said the well-known CA had found there was no bungling in the investments made in Purti Group.
"Gurumurthy has said there is no wrongdoing in the investment pattern of Purti and the party accepts it," Prasad said.
Gurumurthy had tweeted on Tuesday on the issue which he said was misinterpreted by the media. He removed some of the tweets.