I put down Asian because some of the forms define what an Asian is and mention Pakistan.
Revisions to the Standards for the Classification of Federal Data on Race and Ethnicity
The "Asian" category will be defined as "A person having origins in any of the original peoples of the Far East, Southeast Asia, or the Indian subcontinent including, for example, Cambodia, China, India, Japan, Korea, Malaysia, Pakistan, the Philippine Islands, Thailand, and Vietnam."