The following excerpted from is a 17 December 2013 news release by the Press Information Bureau, Government of India.
In order to discourage import of sugar, the customs duty on sugar import has been raised from 10% to 15% with effect from 8.7.2013. Since then there has been hardly any imports under Open General Licence (OGL) worth affecting domestic market.
This release is available in its entirety at:
http://www.pib.nic.in/newsite/erelease.aspx?relid=101881