The controversy engulfing India's Tata Group has deepened after a senior ruling party lawmaker filed a complaint calling for the prosecution of its chairman Ratan Tata in connection with a fraud allegation.
The complaint by Subramanian Swamy, a former justice minister, accuses criminal investigators of having failed to follow up evidence linking Mr Tata to an allegedly corrupt telecoms transaction.
His filing, made on Friday at New Delhi's Central Bureau of Investigation Court (CBI), included a preliminary report apparently produced in 2013 by officials at India's Serious Fraud Investigation Office (SFIO), which the Financial Times has seen.
The report states that Mr Tata and several other Tata Group executives were liable to prosecution for "cheating and dishonestly inducing delivery of property" — an offence with a maximum prison sentence of seven years.
Group holding company Tata Sons, speaking on behalf of Mr Tata and all the Tata companies involved, said that allegations about the transaction "had been thoroughly inquired into by the CBI and no evidence was found which could attribute any criminality or violation of any law or regulation".