Dear aradhya
may b it is not covered as I know if a partnership is registered under indian partnership act 1932 then it will come in sec 2(23). And llp is also included in this.
Dear it is not registered in India so they fall under the catagory of NR. You can assess thier status from thier PAN no. They have PAN no in India. If not then when you will go for registration of PAN, then you will come to know about it.