New Delhi, May 17 (PTI) Stepping up his attack on RBI Governor Raghuram Rajan, BJP MP Subramanian Swamy has urged Prime Minister Narendra Modi to sack him immediately claiming he was "mentally not fully Indian" and alleging he has "wilfully" wrecked the economy.

However, senior Congress leader Jairam Ramesh reacted sharply to the attack on Rajan saying why Swamy does not hit his "real target" Finance Minister Arun Jaitley but "set up dummy targets" like the RBI Governor who cannot speak out.

BJP spokesperson on economic affairs Gopalkrishna Aggarwal said Swamy is a senior leader whose opinions "definitely matters" but added the final say will be with the government.

Following up on his barb last week that Rajan should be sent back to Chicago, Swamy has written a letter to the Prime Minister Swamy saying how a person appointed by the UPA government should be continued in the post.

"I cannot see why someone appointed by the UPA Government who is apparently working against Indian economic interests should be kept in this post when we have so many nationalist- minded experts available in this country for the RBI Governorship," he said.

The newly-nominated MP urged Modi "to terminate the appointment of Dr Raghuram Rajan in the national interest."

"The reason why I recommend this is that I am shocked by the wilful and apparently deliberate attempt by Dr Rajan to wreck the Indian economy," he said adding his concept of raising interest rates to contain inflation was "disastrous."

Also, bad loans with public sector banks has doubled to Rs 3.5 lakh crore in two years, he said.

Rajan was appointed RBI Governor by the previous UPA government in September 2013 for a three-year term, which can be extended.

"These actions of Dr Rajan lead me to believe that he is acting more as a disrupter of the Indian economy than the person who wants the Indian economy to improve.

"Moreover he is in this country on a Green Card provided by the US government and therefore mentally not fully Indian.

Otherwise why would he renew his Green Card as RBI Governor by making the mandatory annual visit to the US to keep the Green Card current?" he wrote.

At an event here yesterday, Jaitley had declined to wade into speculation whether Rajan would get a second term or not.

"As far as finance ministry and RBI are concerned, there is an institutional relationship between the two. It is a very matured relationship. We at the highest level at the two institutions have discussion and each other's view is considered between us," the minister had said