"The Imperial Gazetteer Volume XIV states: When in 1784, Tippu succeeded in driving the English out of Kanara, he was determined on both political and religious grounds to convert the native Christians of Kanara to Islam. After taking a secret census, he despatched troops who arrested 60,000 or according to other accounts 30,000 out of 80,000 Christians found. The churches were dismantled and every trace of the Christian religion disappeared. Except infirm women and children, the prisoners were marched under strong military escort to Seringapatam . . . the men were circumcised, the unmarried girls were carried as concubines and many of the married women were badly treated."
January 1, 1970
https://en.wikiquote.org/wiki/Christianity_in_Karnataka