if any one got preparatory course what he or she ... do.take admission in nit ?? or go for preparatory course ??

It depends on the mentality of the candidate as if one goes with nit then he misses out on iit tag while if one goes with preparatory course then he wastes one year which could have been utilised in future studies also taking admission in preparatory course is also a risk as if one fails to qualify the exam held at the end of the year then he is out and will not get admission for he opted course thus wasting one full year hence its better to go with nit as nit are also full of talents and there are many who take admission in nit just to get their preferred course hence indirectly you have almost the same competition level in nits as well which can shape your future.