Yes, the warranty of the Canon EOS 1200D Dual Kit is valid. If you can show the purchase bill and the warranty card, you can get service in any city. I had purchased the DSLR from Delhi but after shifting to Mumbai, I called Canon customer care, they have promised me service in this city too.
The warranty, repair and replacement policy includes manufacturing defects. Almost any type of manufacturing defects are replaceable by Canon service center. But it doesn't include any accidental damages.