Chakshusha is the Manu

Manu (Hinduism)

In various Hindu traditions, Manu is a title accorded to the progenitor of mankind, and also the very first brahman king to rule this earth, who saved mankind from the universal flood. He was absolutely honest which was why he was initially known as "Satyavrata"...

 of the sixth Manwantara, son of Ripu by Vrihati. The Márkandeya

Markandeya

Markandeya is an ancient rishi from the Hindu tradition, born in the clan of Bhrigu Rishi. He is celebrated as a devotee of both Shiva and Vishnu and is mentioned in a number of stories from the Puranas...

 has a legend of his birth as a son of Ksbatriya ; of his being exchanged at his birth for the son of Visranta Rája, and being brought up by the prince as his own ; of his revealing the business when a man, and propitiating Brahma

Brahma

Brahma is the Hindu god of creation and one of the Trimurti, the others being Vishnu and Shiva. According to the Brahma Purana, he is the father of Mānu, and from Mānu all human beings are descended. In the Ramayana and the...

 by his devotions, in consequence of which he became a Manu

Manu

-Geography:*Manú Province, a province of Peru, in the Madre de Dios Region*Manú National Park, Peru*Manú River, in southeastern Peru*Manu River, Tripura, which originates in India and flows into Bangladesh...

; In his former birth he was born from the eye of Brahma ; whence his name from Chakshush 'the eye.'