CBI has initiated a preliminary enquiry into allegations of nepotism and favouratism against some Indian Olympic Association officials in sending two medical professionals with the Indian team to the Rio Olympics last year. It is alleged that Dr Pawandeep Singh and R S Negi did not have requisite qualification and experience but were sent to the games with the Indian contingent. Agency sources said there are allegations of nepotism, favoritism, and irregularities against certain officials of the IOA which are being examined by the CBI.