If they are extending this train to Mumbai, the best RSA can look like this:
1. Devagiri and Ajanta should be as follows: Ajanta and Devagiri should have RSA and can be as follows: Devagiri leaving Mumbai at 22:30 PM can arrive SC at 15:00 PM and can leave as Ajanta at 19:00 PM to arrive CST at 12:30 PM (PM at CST from 13:00 PM to night 22:00 PM) and leave as Devagiri
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CR rake PM at CST
2. Another set of rake , that leaves as follows: Ajanta leaving CST at 16:00 PM , to Manmad at 20:50 PM to arrive SC at 09:30 AM can leave as Devagiri at 12:00 PM to reach CST at 06:00 AM and can go for PM from 06:30 to evening 15:30 PM
CR rake PM at CST
Gowthami and KCG MYS will run as standalone rake or can have RSA with each other at MYS or at Kakinada