Option c is the correct answer. Kannauj, formerly known as Mahodaya, is an ancient city in Uttar Pradesh, India. The name "Mahodaya" was used during the time of Mihira Bhoja. It served as a center for various imperial Indian dynasties and played a significant role in historical struggles. Kannauj was a focal point in the Tripartite struggle involving the Gurjara-Pratihara, Palas, and Rashtrakutas. The city is renowned for its perfumes and traditional Kannauj Perfume industry. It's also associated with the distinct Kannauji dialect of the Hindustani language.