first up all family visa not posssible in this salary--

if u earn 6 lakhs per/annum india

saving 3 lakhs without any loan its good-

in qatar 6500--bacelor 1500 spending--if u send 2500 for family india
remaining 2500
so 2500*14=35,000

35,000*12=

so u will get 1 lakh more --but without family.