Colonel Colin Mackenzie, a British army officer and surveyor for the East India Company, is recognized as the first Surveyor General of India.
Statement I is accurate: Mackenzie's 1800 visit to Hampi significantly brought its ruins to scholarly notice.
Statement II is accurate: He served as an East India Company official, conducting surveys for them.
Statement III is accurate: Mackenzie and his team produced the initial detailed survey maps and drawings of Hampi, significantly documenting its historical importance.
Statement IV is inaccurate: While Mackenzie gathered information from local scholars and inscriptions, there is no evidence he received information from Duarte Barbosa, a Portuguese traveler from an earlier era.
Therefore, the correct choice is Option (A).