A plea was filed in Delhi High Court on Thursday seeking a direction to the Centre to change the call sign “VT” on Indian aircraft, saying the prefix stands for Victorian Territory and Viceroy Territory which is a legacy of the British Raj.

The plea said the call sign or the registration code was for the identification of an aircraft and the prefix “VT” was the nationality code.

The petition sought a directive to the Centre to change the call sign “VT” to secure the sovereignty of India as well as the rule of law, right to freedom, and the right to dignity of Indians guaranteed under the Constitution.