RTO India — I have a Canadian and Dubai light vehicle driving license and want an Indian driving license in Delhi

I am a NRI and have come back to India. I have a Canadian and Dubai light vehicle driving license. I want to apply for an Indian driving license. I went to the RTO office in Sarai Kale Khan to get an Indian driving license. I know that as per the Motor Vehicle Act
Section 9 (3) (a) (iii), states that a person holding a foreign license can get an Indian driving license. However the people working in the RTO do not seem to know about this article in the Motor Vehicle Act, despite me informing them. They say that I need to apply for a learning license. I am a senior citizen and was just being pushed around from pillar to post. I am seeking your assistance in this matter, so that I can get the Indian driving license. Can you please guide me on this.