After sales service seems to be good, my small town has 2 service center however the friend who owns them said haven't needed to visit center yet.
he has 3 xolo in family now.
models 2000, 600, 1100
He's a hard users and have claimed warranty and cashback on other makes like LAVA, Micromax, Spice, Karbonn.
once some service (not xolo) center was giving him 2 months repair date, he asked them to give in writing so he can order 100 banners and have them placed
all over the city, his issue was resolved in 24 hours after this