Sir,what do we actually mean by concepts.Explain me what are concepts and how to clear them.Help me to make my time table for iit-jee 2015 preparation.

Aconceptis a thought or idea or the logic behind something happening. You need to be to read the topics seriously and try to understand the logic or idea behind it. Regarding time table, I will suggest you to make the plan by your own. Make the plan month wise. Plan the month wise target which is to be completed till the final exams come. Thanks