New India Assurance — hike in premium amount

Address: 110095

The premium amount for my health insurance new mediclaim 2012 has been increased from 9243 (Previous year) to 19409 (Present year). Please specify the reason for the same. Policy no is[protected] and customer id is 1h2438333. I have been doing this health insurance from last many years and it includes the cover of myself and my daughter. Please look into this.