Indore, Dec 17: In an attempt to curb vehicular pollution in Indore, the RTO here has mooted an idea to run CNG auto rickshaws in the city by replacing old, decrepit autos which are 10 years old. Informing this, an official in the RTO, said that as per the plan, the RTO will cancel licenses of all those auto rickshaws which are more than 10 years old.