New train coming soon from Bengaluru to Renigunta, mostly through Puttur. So all arrangements happening on March 10/11. My suggestions would be morning trip from Bengaluru to Renigunta, then the same train going to Vizag in the afternoon. Another option, with the same morning timing, is going from Vizag to Renigunta in the afternoon, and then back to Bengaluru. Keep 2 trains for maintenance in either Vizag or Bengaluru, reach Renigunta from SBC in 4.30-5 hours, then have a 30-50 minute break before heading to Vizag for an 8.30 hour travel time.

New Bengaluru SWR rake VB to Renigunta jald hi mostly Puttur ke zariye se chalegi. Toh sab VB ki inauguration 10/11 March ko hogi. Meri suggestions ye hain: subah Bengaluru se Renigunta, dopahar mein wahi rake Vizag ke liye jaaye, ulti seedhi: subah wahi waqt pe Vizag se Renigunta, dopahar mein wahi rake Bengaluru ke liye. Maintenance ke liye 2 rakes ho, ya toh Vizag mein ya fir Bengaluru mein, SBC se RU mein 4.30-5 ghante lage fir 30-50 minute ka stay, phir Vizag mein seedha 8.30 ghante mein.