Hello Vamsi
Within Capital Project you have Preferences inside a project.
Within that you have Checks category for each of the tools, Logic, Integrator, etc.
Running Mode within Checks include one called "On Release". Here you can set what DRCs to turn when the Release Level of a Design is changed.
Have your tried changing the Release Level of a Design from Web Services?
I don't have much experience with Web Services, but I would imagine that changing the Level to Release would trigger those DRCs.
Regards,
Pat