if i get into preparatory corse in iit 2010 should i write iit 2011 after 1year course and clear it and then get in the actual 4 year course or no.....

Hi Priya , 

If you are going for to enroll for a 1 year course you can surely write JEE 2011 and if you are able to get a good rank and make it to a desired college you can go for a 4 year course . 

But before going for preparation you should set your aim on which college and what stream you want to go for so that you can raise up your preparation level .

You can check out free sample papers and study material available on ASKIITIANS.COM and also enroll for a free demo for online class so that you have a slight idea.  

Feel free to post as many doubts you have we wud be happy to help .

All the best !!!

Regards

Anshul