GST on Rent Under RCM

Basu Agarwal II (9 Points)

14 July 2017  
1.)I am registered under composition scheme under GST. i am paying rent of my shop Rs. 9000 Per Month. whether i am liable to pay Tax under RCM (my landlord is not registerd).
if liable so then what rate.
2.) Is the situation is differ when the rent is 12000 per month