Thanks for the question , you seem to be interested in architecture. Your NATA marks 155/200 is weel and good but your HSC are bit down but thats not the major probems. I am giving names of few colleges below 

School of Architecture & Planning

Anna University

Sathyabama University

Measi Academy of Architecture

as per NATA rules 45% i=should be there for admiszion in first year in any architecture college and you have it , so dont take tension you will be called for counseling just go for it.

Good Luck 

Hope I have helped you.