The correct option is C 26.31%
The total amount invested by Vinay Srivastava is 1,000,000 +600,000 (Start of 2004 in debt-based + equity-based funds) + 1,800,000 (start of 2006 in debt-based funds) + 200,000 + 200,000 (start of 2007 and 2008 respectively in debt-based mutual funds). Hence, the required answer will be the percentage equivalent of the ratio 1038 = 26.31%.