defenation: Pehla pad avyaua ho aur jisasa Nana samasth pad Kriya visheshan Ki TARAH prayukt Ho, usse avyayi samas kehte hain.
tatpurush samas;
defenation: jis samas MEIN antim pad ki pradhanta rehti HAIUSE tatpurush samas kehte hain is samas ke Pehchana Ka Tarika Yeh hai ki Dono Pado ke beech mein Karak bhi VIBHUTI loopt rehti hai ..