I did a chennai - palakkad (malampuzha) trip over this weekend with family . Total Distance travelled 1300 + Route taken : Chennai - Trichy - Dindigul - Palani - Pollachi - Pallakad. Wonderful route all the way .. Travel Time 7.30 hrs one side + 1.30 hrs break. Avg speed 82 kmph Chennai - Trichy - Dindigul .. No need to say about this wonderful 4 lane road .. Constant speed of 140 - 180 was cake walk for my beauty .. Dindigul - Palakkad - Great , smooth 2 lane road .Can easily do speed of 120 + on this route . The small towns inbetween was little conjusted and 3 -4 rail crosses that pop up suddenly on this smooth road was a disturbance . Apart from that no issue on this route. Since the route was good we took the same route for the return journey and reached back home by 7 pm , sunday ..