Hello,

As the dates for MHT CET B.arch are already out , you can check out the exact procedure dates on the below link -

https://www.google.com/amp/s/engineering.careers360.com/articles/mht-cet-barch-admission/amp

Also you can fill in the form with your JEE paper 2 examination score , the results for paper 2 of NATA will be out tentatively by 21st July. 

You can also apply in colleges accepting applications by NATA score later on. 

Hope this helps. All the best.