Megasthenes' Herakles is the conventional name of reference of an ancient Indian

History of India

The history of India begins with evidence of human activity of Homo sapiens as long as 75,000 years ago, or with earlier hominids including Homo erectus from about 500,000 years ago. The Indus Valley Civilization, which spread and flourished in the northwestern part of the Indian subcontinent from...

 deity. Herakles was originally a classical Greek divinity. However, in the aftermath of Alexander's conflicts in North-Western India, an Indian version of this classical Greek deity was identified by Megasthenes

Megasthenes

Megasthenes was a Greek ethnographer in the Hellenistic period, author of the work Indica.He was born in Asia Minor and became an ambassador of Seleucus I of Syria possibly to Chandragupta Maurya in Pataliputra, India. However the exact date of his embassy is uncertain...

 who travelled to India as the ambassador of the Seleucids during the reign of Chandragupta Maurya

Chandragupta Maurya

Chandragupta Maurya , was the founder of the Maurya Empire. Chandragupta succeeded in conquering most of the Indian subcontinent. Chandragupta is considered the first unifier of India and its first genuine emperor...

.

Megasthenes' Herakles as Krishna

Many scholars have suggested that the deity identified as Herakles was Krishna

Krishna

Krishna is a central figure of Hinduism and is traditionally attributed the authorship of the Bhagavad Gita. He is the supreme Being and considered in some monotheistic traditions as an Avatar of Vishnu...

. Edwin Francis Bryant adds the following in this regard:

Megasthenes' Herakles as Baldeva

Colonel James Tod

James Tod

Lieutenant-Colonel James Tod was an English officer of the British East India Company and an Oriental scholar.Tod was born in London and educated in Scotland, later joining the East India Company as a military officer. He travelled to India in 1799 as a cadet in the Bengal Army where he rose...

 associated Herakles primarily with Baldeva, Krishna's older sibling, but also indicated that Herakles could be associated with both:

Megasthenes' Herakles as Shiva

According to Quintus Curtius, the Sibae, whom he calls Sobii, occupied the country between the Hydaspes and the Akesines. They may have derived their name from the god Siva.
According to Dr. Schwanbeck and J.W. McCrindle, Megasthenes meant Siva

Shiva

Shiva is a major Hindu deity, and is the destroyer god or transformer among the Trimurti, the Hindu Trinity of the primary aspects of the divine. God Shiva is a yogi who has notice of everything that happens in the world and is the main aspect of life. Yet one with great power lives a life of a...

 when he mentioned Herakles in his book Indika