Well, no replies are blessing in a way.
We used this stretch on this weekend while going and coming back. Road surface is bad for some 5KMs on this 22 KM stretch. Rest is okay, nothing worth a fast movement for hatchs and sedans. SUVs and MUVs were doing it at good speeds. On craters where we were crawling at 1KMPH, they (Innovas, Boleros and such UVs) sped past us at nothing short of good 30-40 KMPH.
Cool breeze from canal and serenity of surroundings was awesome. There were vehicles but much more lesser than the main road going through city. We loved this stretch and will use it again for our next trip whenever that happens.
A word of caution:
Do not use it in night until you're in a group/convoy.