NIT surat is not among top rung NIT's but if you compare average salary even NIT patna has better average salary than NIRMA  but DAIICT is a differnrt thing and if u  r getting it  then go for it .

But,even I would prefer NIT surat OVER DAIICT bcoz over the time u would feel that NITs offer more lucrative job placements due to their brand & the flame of NITs would not cease to such Institutes.