"Kothari complained of high blood pressure, respiratory problem and chest pain. A three member medical board has been constituted to examine his condition," a hospital spokesperson said.
The businessman had come to Indore yesterday to attend the funeral of his relative and he was picked up after the cremation was over, police said.
The scam relates to alleged illegal leasing of land around 16th century Jal Mahal, a palace located in the middle of the Mansagar Lake in Jaipur.
Besides Kothari, who owns Jal Mahal Resorts Pvt Ltd, an IAS officer of Rajasthan and two others have been named accused in the case.
The Jaipur Court in September 2011 had issued arrest warrants against them and the Rajasthan High Court had dismissed their anticipatory bail plea.
In October last year, the Supreme Court rejected an appeal by the accused against the arrest warrants and ordered the Jaipur Court to decide the case by January 5.
The Government land adjoining Mansagar lake was handed over on lease for 99 years by Rajasthan Tourism Development Corporation (RTDC) to Jal Mahal Resorts for developing tourist facilities around the lake.
The deal got mired in controversy when objections were raised as to how the Government land could be leased out for 99 years instead of 30 years.
Rajasthan Government had given the land to Kothari's firm for Rs 2.5 crore a year to build a commercial complex, which would also have hotels and shops. The SC had ordered a status quo on cancellation of the contract last year.
