im from hyderabad& iwent to china for the study of MBBS in 2006.so after 3yrs icame back to india for holidays.& icouldnot go on time back to my college & mean while my visa got expired.so i applied for visa in chinese embassy in newdelhi.&i got visiting visa i.e,F-VISA.now after i go to china by this visa,can ichange it into student resident permit visa.bcoz still i had my study there for 6months.& this F-VISA expires after a month.can u suggest me regarding this.