'Taj Mahal: The True Story', written by Purushottam Nagesh Oak in 1989, claims that Taj Mahal was originally a Shiva Temple named Tejo Mahalaya. Shah Jahan seized the temple and converted it into a tomb, the author claimed. Oak also termed Christianity as 'Krishn Niti' and asserted that the Vatican was originally a Vedic creation called Vatika.