Chennai: Tamil superstar Rajinikanth's wife, Latha, on Tuesday denied of being a guarantor for any loan as alleged by a Bengaluru-based firm and threatened 'serious' legal action against its owners for filing a police complaint against her.

Ad Bureau Advertising Pvt. Ltd., represented by its Managing Director Abhirchand Nahar, had filed the complaint 'falsely alleging' that she had stood as guarantor for a loan of Rs 14.9 crore to the producer of her husband-starrer 'Kochadaiyaan', a statement from her office said.

It said the company had filed a 'false private complaint' that only Rs 8.70 crore had been returned and that with an intention to evade payment, she had approached a Bengaluru court seeking injunction order with 'fabricated documents.'

"Latha Rajinikanth has not stood as guarantor for any loans as has been alleged," it said adding that the owners of Ad Bureau Advertising Pvt. Ltd., Nahar and his wife Chanchal, had "laid criminal pressure" upon Rajinikanth a year ago to make 'wrongful gains.'

When she did not budge to the 'illegal demand' of taking the responsibility of recovery, further pressure was brought by way of 'spiteful media campaigns' and threats that they would go on a 'character-assassination spree' against her and her family "if she did not interfere immediately in the matter and ensured settlement of a so-called loan," it said.

Meanwhile, she obtained a court order, restraining the media from publishing news about the dispute, but "false allegations of calling the relied documents as forged ones were made before the court and the same were thrown off," it said.

"The act of Abirchand Nahar and his wife Chanchal of the said M/S Ad Bureau Advertising Pvt. Ltd., is entirely false, fraudulent, contemptuous, extortious and criminally ill intended. Latha Rajinikanth will be initiating serious legal action -- both civil and criminal -- in order to get them punished in accordance with law and for damages," the statement said.

An FIR was lodged in Bengaluru after Ad Bureau had filed a complaint on June 9, alleging that Latha had produced fake documents in the court to defraud and illegally sell the rights of the film to an entertainment company.