In the 25-page defence evidence affidavit, which was served to the UK Crown Prosecution Service, Mallya is learnt to have alleged that his was a case of "political vendetta" and "loss-making business".
The Central Bureau of Investigation has started a preliminary enquiry looking into the Rs 950 crore (Rs 9.5 billion) alleged bad loan given by IDBI Bank to Kingfisher Airlines ignoring the company's negative credit ratings and net worth.
The CBI has shared its findings with the Enforcement Directorate.