Military veterans returned their war and other medals at various places in Haryana and Punjab on Tuesday to register their protest against the "diluted" notification of the One Rank One Pension scheme.In Panchkula, adjoining Chandigarh, the veterans returned their medals to the Panchkula deputy commissioner to protest against the OROP notification issued by the central government.There were reports of veterans returning their medals in Jalandhar, Amritsar, Patiala in Punjab and Rohtak, Hisar and Ambala in Haryana.The veterans said that they had rejected the OROP notified by the Narendra Modi government.The defence veterans said that they will observe a 'Black Diwali' this time to protest against the Modi government going back on its assurances.