pls help

[prabh_68]

my petition under F4 category has been approved. can i file I485 for adjustment being in United States on visitor visa?

[bkwld]

You need to check your priority date. If its current then you can file:
http://www.immihelp.com/greencard/visa-bulletin.jsp
Do not be out of status, otherwise you will not be able to file, even though you have I-130 approval.