Mahesh Kocherla -- there isn't much information provided here. Do you already have the week1, week2, etc. field in your dataset? Or are you asking how to add a week field?
If you already have it, you can simply groupBy it and Incorta will sort alphanumerically. If the values are as you've shown, you'd be all set. If you need to join them in, you should look into how we handle date attribution in Incorta. Check out our best practices article on date dimensions here: https://community.incorta.com/t/83hlwdp
You should also watch this "Action on Insights" installment on how to deal with time dimensions in Incorta. There are a ton of great pointers in this 20 minute session. https://community.incorta.com/t/h7h81sl/icymi-action-on-insights-time-intelligence-with-incorta