The clock is now ticking down to Goods and Services Tax GST roll-out but the biggest tax reform in the country did not come easy. It took 17 long years for the GST to take shape. 

GST will replace an array of central and state levies with a national sales tax, thereby creating a single market and making it easier to do business in the country. 

Here's the timeline of the long journey to GST roll-out:

2000 

2003 

2005 

2006 

2009 

2010 

2011 

2013 

2014 

 2015 

2016 

2017

(All images sourced from PTI)