About 50 activists of Sri Rama Sene had barged into the school after locals complained about students being taught Arabic and Urdu "forcibly".
They had questioned the school authorities about "forcibly" teaching these languages to students of sixth and seventh standards between 9.15 AM and 10 AM every Saturday.
The attack had forced the headmaster to assure them that the classes would be discontinued immediately.
The management held a meeting with the parents and villagers today and decided not to continue the classes, school sources said.
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Sixteen Rama Sene activists have been arrested so far in connection with the "raid" on the charge of trespassing into the St Thomas Aided Higher Primary School.
Yesterday, Sri Rama Sene's Karnataka unit president Mahesh Kumar had alleged that Arabic was forcibly taught in the institution and there was no government order for the same.
He had also claimed that the Sene took action after gathering credible information on the matter and that they strongly condemned "illegal" teaching of a language as it would pave the way for misleading the children.