to display resources in the gant chart

Amar,

Copy the Resources into a UDF then use it as Bar Label.

Regards,

that is incorrect you do not need to make a udf 

just go to the bars and select current bar labels 

then click on the bar lables tab

then select add 

then in the position select right 

clikc in the label area look in the drop down and select budget labor units for rmanhours or budget labor cost or whatever you want to show there