ciṇ is not the substitute of cli after the verb rudh 'to obstruct' when used in the reflexive sense in the 3rd Person Singular of ātmanepada ,
Thus अन्ववारुद्ध गौ स्वयमेव 'the cow was obstructed of itself'. In verbs other than reflexive, चिण् is employed, e. g. अन्ववारोधि गौर्गोपालकेन.,