Purchase a new preethi lavender MG 176 mixer grinderon 13th January 2015. Its not working good.It produce over noise and it deliver poor grinding. We using same model mixer grinder about a year and it have no such problems. On 15th January 2015 i complaint to the dealer lan mark hyper shoppee. As.As the problem not solved i took the mixer grinder to the shop on 20th January 2015,and required replacement.they just change the blade of the jar and refuse replacement.after that the mixer grinder produce overheat and over noise and poor grinding.