How to find a missing person in kulalumpur

My neighbors' son is missing from last 9 month who was living in Kula lumpur. He is from Lahore, Pakistan. i think 3-4 years ago he enter malaysia on visit visa and his family told me that he was illegal in kula lumpur.   and now from last 9 month his family has lost connect with him....When i ask his father regarding his residence address in kula lumpar , any friend mob. # , they said we have no information .....and even they don't know his Passport #....and no contact/mob. # of his son too. HE always call them and now he didn't call them from 9 months.

dear in this case what is the best procedure to locate him, his family is worried , plz tell me how can i find him....

please reply me asap

You need to make a Police Report of a missing person.

Thanks