Yeah.. wish I could underline the sentences which seems imp to me .
Mam Suppose I read the entire passage and if I'm not sure of any of the answers then what I supposed to do ? Because skipping the entire psg after reading and not answering any of the question would be wastage of time !!

Hi Nitesh, Yes you obviously cannot afford to skip the passage. Pick up a sample paper and its answer key.Start reading the comprehension question in the sample paper. Don't start attempting anything at first..Just read the comprehension once with a focused mind and try to grasp the meaning of each sentence. After you are done reading the comprehension, read the first question and then side by side read its answer from the answer key/solved paper. Do this for all the questions of the comprehension. Similarly, repeat this activity for 10-15 comprehensions in the same way.This way you will be able to identify the pattern of questions, how the questions are picked up from the comprehension, the location of the answer lying in the comprehension, etc. You will also be able to familiarise yourself with some new words and sentence formations. It will give you a good practice as well.  See if this helps. 

Yes... Okay thank you :)