So than SWR introduced only one new train on LD VSG route that too weekly.
Can't credit SWR for Amaravati express extension to Howrah and frequency increase from 3 to 4 days as it was proposed most probably by SER and Mamta Didi was RM so that was a sure shot one.
But SWR is definitely responsible for its downgrade from SF to M/E and now from 18 coacher to 17 coach one.