Dear Sravani ,

Based on your user profile which suggests that you're from Andhra Pradesh, so you can find final intermediate question paper/model paper  from here :(including commerce  paper )

https://school.careers360.com/boards/bieap/ap-intermediate-question-papers

Some important tips to prepare for Intermediate exam :

• Make a study routine that you can follow up daily
• Keep consistency in your studies
• Give mock tests to develop time management skills and know your current  preparation scenario.
• Do revision everyday/weekly .

Hope this helps !

Best wishes !!