I am very satisfied with the micromax canvas HD A116. When I bought it in 2013 it was unavailable in the market as the demand was very high I had to wait for a week or so to get hold of this set. now it 2016 there is no defect internally though once speaker was changed in warranty period but after that I never knocked the door of Micromax care center.
Performance:
With 1 GB Ram it always performed better then any other smartphone under this price range for at least 1 year which is really appreciable. storage was also sufficient. NO problem at all.
Design
Back then it feel a premium phone in hand. Material is also great. doesnt feel like cheap Chinese phones.
OS
When I bought it, it was powered with android ICS. Then an update of jellybean came after 6 months of usage. but it didnt get KITKAT update that was little bit disappointing I was expecting it.