Hi mitrasit,
I also did my Bachelors from Sikkim Manipal. After being informed that WES does not recognize Sikkim Manipal, I had no option but to apply for ICAS. Finally yesterday I received ICAS assessment, and its positive. ICAS does recognize Sikkim Manipal University.
But do note, they take lots of time to do the assessment. I submitted the application on May 21 and received the assessment on December 14.
Regards,
Masood Ahmed