As per the folktale, when Shri Ram had hit Marich with his arrow, he had blown into pieces. His body parts had fallen in Kay village and his head was in village Tok. The word Tok is in marathi, which means head. Shri Ram had also founded a Shiva temple at this place.
Valmiki Ramayana 3/44/1 to 3/44/22 Manas 3/26/6 to 3/27/1