Bandra-Amritsar Premium is given Stoppage at Surat as per TAAG.
And Needless to say, Borivali Stands of More Importance than Surat, especially for trains Coming From BDTS.
Borivali station alone Can give enough response to a train with Surat and Vadodara Combined.
I will agree For a Surat Halt if the train is made to Depart From Mumbai Central instead of Bandra Terminus