i m studying in 12th.i need all the neccesary details to appear for an IIT.is it necessary to join good coachings for it or self preparation

IIT is one of the most competitive exams.you bestow all seriousness upon it and you will come out with success.

it too late to ask but no problem . i think within within a monthor two there is an iit exam .if u didnot cross the hurdle no problem try for the next year. when you consider for preparation it is necessary to join ina good coaching center because you will get a good guidence how to write the exam.