Yes adra presently doesn't have that infrastructure but that needs to be developed. Maintaining 4 rakes at Adra is not a big problem. Let's wait for the Budget 2021. Adra Division has some plans on improving passenger traffic operations. Lets see if anything we get to see in Pink Book of SER in 2021-22.
An alternative of SRC CDO is also needs to be found out looking at the huge congestion there.