I am not in a modd to post a full travelouge; so here is a not so short post on how things turned out to be.
Tanjore was dropped at planning stage. And we decided to stay at Madurai on day 1; which turned out to be a wise decision.
We took the Ernakulam - Perumbavoor - Kothamangalam - Adimali - Munnar - Poopara - Bodi - Theni - Madurai route on day 1. Even with a 6.30 AM start from Ekm, it was 11.30 by the time we reached KTDC restaurant, Munnar, which was closed. So had food from a north Indian restaurant nearby (excellent food), and drove around in Munnar for some time.
We reached Theni by 4.30 and had a tea break. It was 6.30 PM by the time we reached Madurai, where rooms were booked in advance at TTDC, Madurai.
With a 9 AM start from Madurai we reached Rameshwaram by 1.30, stay again at TTDC, Rameshwaram (very good rooms - depends on which room you get). Did Dhanushkoti (INR 1050 for a 3.30 to 6.00 PM drive on a 4wd Jeep - TTDC to Dhanushkoti and back). Did darshan only next day.
With a 11- ish start from Rameshwaram on day 3, we reached Srirangam at 6.30 PM via Ramanathapuram (turn right a few km before Ramnad) - Karaikudi - Pudukottai. Lunch was from Karikudi Annalakshmi and had a tea b reak few KMs after Pudukottai. Pudukkotai - trichy was where we were loosing time with 4 laning work going on. Stay was at the Serviced apartments - (there is a link on another thread, will search it out if anybody wants it). Very good place to stay - though the a/c and water heater were not working. Food was only from the Satguru restaurant within the same premises, again reasonably good.
Lord Ranganatha was pleased to give my kids darshan of nis bullock cart, white Stallion and an Elephant as we were entering the premises.
Day 4 was very hectic - started from Srirangam after the darshan - again by 11. I followed google maps, and forget the "Vandavasi Cheyyar ranipet" part posted by ampere above. I turn left at Villupuram on to SH 4 via Gingee.
Maps shows a right turn somewhere after a left at Gingee, which we miss and we go through errr... umm.. farm lands for a good 10 KMs. I should confess that couple of times I looked up google maps from home, it showed the route via Cheyyar; dunno why it showed the Gingee - farm land - Arcot route when I invoked it from Srirangam. Vellore - Chittoor was very patchy, with Chittor being busy, crowded and we miss the Chittoor byepass, which turned out to be a blessing in disguise (as we found in the return trip).
Return started with the Tirumala - Tirupati - Mangapuram - Srikalahasti leg; with road to Srikalahasti being not bery smooth. Stayed overnight at Srikalahasti overnight, again for an early morning darshan.
With a 9.45 start from Srikalahasti, we lose plenty of time on Chittoor byepass (tarring work going on). Reach Vellore and have lunch from a brand new place (Ananda something) few kms from Vellore (LHS towards Krishnagiri side).
Before Salem, we go down the Thoppur - Mettur road for couple of KMs before we realise that we are on the SH, rather than NH. We go back to the NH, whcih turns out to be huuuuuge mistake. Few Kms before Avinashi, the road is literally paralysed. I am drowsy and go back to the 3rd row; from Salem. All I realise is that we pass what I think is outskirts of Tiruppur just before 7 PM, and are forced to enter Coimbatore city at around 11.30. (run out of smileys). Had dinner somewhere in between, and realise that we have not lost much in terms of running time.
We hit first real pothole of the 1800 odd kms journey few KMs after Walayar, and the front wheels go out of alignment, according to the driver. We reach home by 3.30 AM with a 15 minutes stop for tea around Pattikkad.