Very disappointed with you DD. Kanthara is a Kannada movie. Its from Sandalwood, not Tamil industry. It was dubbed to Tamil and other local languages like Hindi due to heavy demand. Someone was calling KGF a Tollywood movie the other day even though its from Sandalwood. That kind of mistake shouldn't be happening on these posts.
Kanthara should be watched in theaters only for the first time. Its a whole new experience.
Do not wait for OTT. Buy tickets and encourage good movies like these.