SATHI, You can never work more than 20 hours during school year.. This applies to on campus, economic hardship or CPT. When you received a new I20 for your CPT, it says part time, you may want to double check it. Anyways, If you have a plan of applying for H1 from the same company, do everything right. DO NOT WORK MORE THAN 20 HOURS. NOT AT ALL. CHAO.