The doctrine of equality applies to all who are equally placed; even among persons who are found guilty. The persons who have been found guilty can also claim equality of treatment, if they can establish discrimination while imposing punishment when all of them are involved in the same incident. Parity among co-delinquents has also to be maintained when punishment is being imposed. Punishment should not be disproportionate while comparing the involvement of co-delinquents who are parties to the same transaction or incident. The disciplinary authority cannot impose punishment which is disproportionate, i.e. lesser punishment for serious offences and stringent punishment for lesser offences. Rajendra Yadav v. State of Madhya Pradesh, (2013) 3 SCC 73.