* The duty doubled to four percent in the budget 2012-13
* Duty rose to six percent in January 2013
* Duty rose to eight percent in June 2013
* Duty rose to 10 percent in August 2013
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* The duty doubled to four percent in the budget 2012-13
* Duty rose to six percent in January 2013
* Duty rose to eight percent in June 2013
* Duty rose to 10 percent in August 2013
First Published: Sep 01 2013 | 12:56 PM IST