The most probable intended reference is the (2012) starring Vikram, or the phrase “Thattukole” (a colloquial term for a wooden baton/beater, often used in Tamil slang). Alternatively, the user may be referring to an underground or pirated content index (the “Index of” prefix commonly seen in unlisted server directories).
A common misconception found across web forums like Facebook and Telegram is that Thattukoledhey is a full-length Tollywood movie. Index Of Thattukoledhey