I feel I am under paid. What should I do?

I have total 9 YOE and Accenture is my second company. I have spent more than 6.5 years in Accenture and currently at level 9. My total package is 16.5 (15 fixed+ 1.5 variable) . I work in Accenture Operations. I believe my package is low. Moreover Accenture India employees didn't get any increment in base salary this year. I have to buy house, car and manage my household expenses for nearly 11 members. What should I do?