The travellers should book their tickets before one month so that they could travel easily, as I was a new commer, I was ignorant about this so I suffered a lot. So my dear friends book ur tickets first so that you could suffer less. Also bring your necessary things and don't take food or other things from others.
I travelled from Vizag to Bhubaneswar via Konark Express and it's the best train to travel. It will safely take you to Bhubaneswar with in 7 hrs. It will start at around 9:30 pm from Vizag and you will reach Bhubneswar by 4 am the next day morning. You can sleep in the train comfortably.
Train started from Mumbai Central on time and maintenance was good. Pantry car food was excellent. They maintained cleanliness in pantry car. The RPF police are very strict and they took care of the passengers. Totally my journey in Konark Express was awesome. I like the journey and finally reached Hyderabad on time.