purchase from un- registered

srinivas (Asst.Manager) (100 Points)

16 July 2017  
please anyone clarify for following

1. can we have to pay GST on consumables like purchase from kirana shop which are using in office for day to day activities like tea powder, soaps, wash room cleaning & House keeping purpose,

2. I think some items we purchase after payment of tax, then again we need to pay at the end of the month by raising self invoice under RCM

3.can I adjust my liability with my ITC or I need pay only in cash while payment of GST under RCM from unregistered purchase s