2016 Batteries you need - https://amzn.to/3KOqv8x
#1 Screwdriver - https://amzn.to/3Vtlqas

Here is a quick and simple video on how to replace the dead / weak batteries in your Tata key fob. You will need a #1 Philips screwdriver and a flat tip that is as thin as possible. First, you will need to remove the small Philips screw. These are easy to strip so do your best to keep the screw in good shape. Next, use the thin screwdriver to pop the back half off. Once you do that, you will gain access to your 2 dead batteries. Take your thin screwdriver and push the dead batteries out. The new 2016 batteries go in with the + side facing upward for both of them. At this point, you can close it back up and test it to make sure you have a red light blinking. If so, you're all set! Hope you found the video helpful!

TATA INDICA INDIGO UNCUT KEY FOB 2 BUTTON ALARM REMOTE CONTROL K030513
Tata Indica Vista, Indigo Manza