Also Razzal, please note that you can appear in NET from following subjects, to say the least. You can choose more besides these: 

• Economics
• Commerce
• Labour Welfare/ Personnel Management/ Industrial Relations/ Labour and Social Welfare/ Human Resource Management
• Tourism Administration and Management

Hope it will help. Good Luck! 

Dear Razzal, 

Yes you definitely can write NET in commerce. Writing NET in sister disciplines is acceptable. 

Hope it helps.

All the best!