I have to compare the whole CSV file with SharePoint list items to get the result either SP list items and CSV items are same/equal or not and then do the CRUD operation on SP list to maintain the balanced csv items and SP list items. Thanks in Advance.
Create a powershell script which reads the csv as input. Get the List items by id and check if they are equal to the information from your csv. If not, make an update on the item.
Do this for every item. If you need some powershell sharepoint references: http://www.itunity.com/article/completing-basic-operations-sharepoint-csom-api-powershell-1278