hey srividya,
regarding infotech,forget all the rubbish books.just stick to instt mat.remember each page frm that.i also did the same and obtained 66.
regarding a/c,
each a/c qn has a general rule to go.while making a/c notes just write the steps to solve ageneral qn and also write down the twists which are possible and its treatment.
in a/c notes,after each qn write down what was the problem faced by you,and what is spcl in the qn so that on exam day u just have to see the following:
*general steps
*twists
*problem faced by u
*spcl points.
i followed this rule and secured 89
i hope these tips will help u.
r u frm chennai?
i also did my PE1 frm chennai and then shifted to Delhi.