Circar Express
The 17643 / 17644 Circar Express is a daily express train run by Indian Railways from Chengalpattu Junction railway station to Kakinada Port railway station. The train covers a distance of 755 km. Arrival and departure
Train no. 17643 departs from Puducherry every day at 13:00 hrs. reaching Kakinada Port the next day at 10:10hrs. Train no. 17644 departs from Kakinada Port every day at 14:20 hrs. reaching Puducherry the next day at 11:00 hrs. Locomotive
The train is hauled by Lallaguda Loco Shed based WAP-7 or Vijayawada Loco Shed based WAP-4 electric locomotive on its entire journey. Routes and halts
Chengalpattu Junction 
Tambaram 
Chennai Egmore
Gudur Junction
Nellore  
Ongole  
Tenali Junction 
New Guntur
Vijayawada Junction 
Gudivada Junction 
Bhimavaram Town 
Rajahmundry
Samalkot Junction
Kakinada Town Junction
Kakinada Port

Rake sharing
This train has rake sharing with 17651 / 17652 Kacheguda-Chengalpattu Express . Average speed and frequency
The train runs at an average speed of 43 km/h. It runs on a daily basis. Demands 
As per demands this train is extended from Chengalpattu Junction to Puducherry. References

External links
 17643 Circar Express
 17644 Circar Express

Transport in Kakinada
Railway services introduced in 1965
Named passenger trains of India
Rail transport in Tamil Nadu
Rail transport in Andhra Pradesh
Express trains in India