I am not sure whether any difference in batteries of Tiago and Tigor. Anycase, the difference is just Rs.200/-. May be the prices varies depends on the tax structure of the State etc.?
In my last post, I paid the price for Creta's battery which has a larger Ah rating than the one on your car that is what intrigued me. The one in my Creta 68Ah whereas what you have installed gets a 50Ah rating.