hi guys,
its been sometime i am reading lots of post here. i am a begineer and need some help understanding a few things.
First of all what exactly does this maen ?
/ : slide up
\ : slide down
~ : let it ring
h: hammer ons (sounds little similar to slide up, but is sharper)

Does '/' means moving the string while strumming it or something else ?

I guess i understand bit of tabs but i am total inept in understanding the Chords. I think the biggest problem i am facing is how exactly to strum while doing a chord. For example
(Em)Tu, tu hai wohi(Am)-------- Dil ne jise(D) --- Apana kahaa(G)

i goto chordfind.com and find all these chords, but can't get anything close to this song. may be because i literally pick up the fret/string for the chord. do we need to make any changes ? basically how to understand this line of "song"?

i hope the 'lucky' experts could find time to help me here.
i'll be thankful for any help/suggestions.