Explanation:

Buddha traveled to Rajagaha, capital of Magadha, to visit King Bimbisara. During this visit, Sariputta and Maudgalyayana were converted by Assaji, one of the first five disciples. Buddha belonged to Shakya clan whose capital was Kapilavastu, and who were later annexed by the growing Kingdom of Kosala during the Buddha's lifetime.

Avanti and Gandhara are not visited by Buddha.