I purchase dell 3558 notebook at rupees 27499 from my dell showroom .it work good and battery back up also good .but after few month there is problem that it audio and wireless crashed .i try many time but not troubleshoot is not working.i went shop where I went they say please sent to service center.but there is no service center the service center is in delhi and they ask 2000 ruppes as convenice charge and I have no option and I pay.but without service center availablity you may be in problem.so do not buy this laptop .really I face many problem.