Dear Jatinder,
Let me first, apologise for a delayed reply. Welcome to Coimbatore and the Coimbatore Runners group. We will revert with details of our group that is regularly running in Saibaba colony.
As for recommendations, if you start from from GCT (Thadagam Rd), head onto Bharathi park road upto Avinashalingam College, then turn into Alagesan Rd - turn back to GCT) you could get a good road for around 4kms. If you want to add distance, you could go straight from GCT (Thadagam Rd) and turn right into Marudamalai road and go upto Agri college, you could add around 2kms.
On Sundays, you may perhaps like to join our Race Course runs on Sundays that starts at 5.30 am from Income Tax office. Most of our runners do long distance runs (15+kms) on Sunday.
The Coimbatore Runners organised marathon - the Vodafone Coimbatore Marathon 2017 is to be conducted on 1st Oct 2017 this year. Pl visit our website
www.coimbatoremarathon.com and do register. We offer a 21.1 km, 10k and also, a 5k race categories.
Happy running !!