Shahaji Bhonsle is the biological father of Chhatrapati Shivaji.
There are innumerable sources for this, two are mentioned below:
Without any facts and evidences, James Laine in his book claims a Hindu Brahman scholar and Shivaji's teacher, Dadoji Konddev as Chhatrapati Shivaji's biological father. Laine does not calim any Muslim as his father.
Laine cites following source for his assumption: (on page 93 of his book.)
Maharashtrians tell jokes naughtily suggesting that his guardian Dadoji Konddev was his (Shivaji's) biological father.
Now, this book does not make any such claims and James Laine has apologized for his mistakes.
There areis no evidencesevidence which supports the claim that Chhatrapati Shivaji's father was some Muslim pathan. As,
- No Mughal records mentions such thing even though Shivaji was the main rival of the Mughals.
- During Shivaji's coronation (Rajyabhishek) he faced fierce opposition from Brahmans led by his own prime minister (Peshwa). The reason for this opposition was : Brahmans calimed that Maratha caste, to which Shivaji belongs, is Shudra in Varna and not Kshatriya. Hence, Shivaji cannot be coronated in Vedic traditaions. If Shivaji was child of Muslim, the opposing Brahmans would have definitely questioned his paternity to deny the rights to perform coronation in Vedic tradition. But no one made such claim. This episode of opposition by Brahmans is recorded in the poem Rajyabhisheka Kalpataru.