Is micromax a reliable brand and which is its best smartphone under 20k?

hi friends,
I am karan i want some knowledge abut phone, from my side i know that micromax is launching good and low price phone but is it reliable ? and which is the best smartphone under 20k?
how is samsung galaxy grand duos?

First of all tell me about your bujat to bye handset. And its nice you are think of samsung galexy grand duos but this handset is hanging so much. And micromax is also a good company launching good and prise handset but same condition apply to samsung or micromax.