Hey Priyanak,

Use the following college predictor to know your college,

https://www.google.co.in/amp/s/www.collegedekho.com/amp/exam/nata/rank-predictor

NATA score is vakid for 2 years as per 2016 rule, and hence its onky valid for 2016&2017.

From 2017, ruke has been changed and the validity reduced to  year. 

This means score of 2016 is no more valid for 2018 B. Arch courses. 

https://engineering.careers360.com/exams/nata

COA has released the NATA 2018 score card on June 18 for all candidates who had applied for review of their drawing paper. It may be noted that review was open only for drawing paper on payment of Rs. 750 in online mode. COA had released revised NATA 2018 result

Officially dates are not announced it  may start on june last week or in july.

https://www.collegedekho.com/exam/nata/rank-predictor

Vist this link and fill all your credentials to get an idea regarding which colleges you can get.

The National Aptitude Test in Architecture (NATA) was conducted successfully on April 29, 2018 for B.Arch admissions. Being a national-level architecture entrance exam, NATA is extremely popular among students who wish

 In view of complaints by candidates, the Council of Architecture (COA) has opened the facility to review NATA Score card on payment of Rs. 750. The COA has released revised NATA 2018 result on June 7 in online mode. The earlier NATA result declared on June 4 has been recalled.

Hello Aditya, Kindly log in to CLAT official registered website (It's there CLAT application form 2018  available online) and get the print of the same. All the best

The score is too low I am affraid it won't be easy to get admission.

visit this site

https://engineering.careers360.com/articles/reap-application-form 

hope this help.

Chnaces with Governments colleges are quite low ascutoffs close within 8000 ranks. 

However  incase cutoff this year go down subsequently, you can have decentchances with NIT Raipur. 

You can also have decent chance with CGC Chandigarh, Panjab University Jalandhar  DIT Dehradun, ICL institute of architecture Amabala.