Hello Kaveri,
I would not use ITSMOBILEELEMFACTOR and ITSMOBILEELEMUNITS here.
These parameters were not created for this type of adjustment.Note
1316326 ITSmobile: HTML element size is independent of font size
explains what they are to be used for.
I believe you will either need to adjust the size of the Dynpro screens that you are converting to HTML templates or else modify the templates themselves in SE80 as per previous link.
Regards,
Oisin