Correct Answer: Uttar Pradesh

Solution : The correct option is Uttar Pradesh .

Kosala Mahajanapada, an ancient Indian kingdom flourishing in the 6th century BCE, was one among the sixteen pivotal political and cultural centres of ancient India known as Mahajanapadas. Situated in the northern expanse of the Indian subcontinent, Kosala included regions now associated with northern India and southern Nepal. Its capital, Ayodhya, is presently identified with the modern city of Ayodhya in the Indian state of Uttar Pradesh.