Hello Amit,
N1 object in generation of comp indexes for partners do not split NAME1,2,3,4. It takes all together. In case you would like to kick out NAME2 you would need to enhance the code for index generation.
As we dont know the background of your requirement I can not help more. Maybe you can explain why you want to do this.
Maye you dont want to transfer NAME2 to GTS already, in that case you need to update BadI or user exit.
Kind regards,
Gabriel.