Yes most colleges finish their counselling after first NATA itself which is not favourable for those who wish to appear for NATA July. However each college holds counselling separately as Council of Architecture which is the organising body of NATA does not conduct any Joint counselling process. So search for colleges which perform counsellin for students who appeared for NATA July. Else the NATA score is valid for 2 years and you may get admission in any college within 2 years based on your score. All the best!