When the paragraph is lengthy it is very difficult to remember the given data.For each question I have to go back to the paragraph again.so how to get rid of that?

Hi Laxmi, It is almost impossible for anybody to remember every detail given in the passage. Rather than trying to do that, a good way to approach the RC would be to identify the main point of each paragraph as you read through the passage. If you do this, you will have a good idea about which paragraph deals with which idea. Now, If you encounter a question specific to a paragraph, you can easily go back to that specific paragraph and answer the question. Generic questions are mostly on the main points of the passage and if such a question is asked, you will be able to answer it without having to go back to the passage since you have already identified the main points.