I Think it's not possible brother,  because one of my friend from tamilnadu got 140 in Nata and 1150 in sate board.  But she can't get JK Clg of architecture,   Bombay.     It was before 3 years but now I don't know,  try better u can get

Well according to last year as of 2017, for general category it was around 180s i.e (your boards percentage + half of your nata score) and to get into J.J you must score a minimum around 165 .

For eg: if your boards percentage are 90 then you need to score around 170 in nata so your main score would be 170/2 = 85 and 85+90= 175

That would be a decent score to get into J.J College of Architecture.