Keep around 2:30hrs for the journey back. It will be tiring, so give yourself ample time and also take rest wherever needed. Drinking water becomes a luxury and so you can fill the bottles from the streams. This trek isn't for someone who doesn't enjoy walking on the rocks.
You can take the same way back to reach Tada village from the Tada Falls. There on you can either take a bus, train or cab back to Chennai or Tirupati.
