After one year 7 days the computer has stopeed working, the display is not coming, the i went to service center located in Noida..they told me that warranty has expired ..so u have to pay service charge...i paid one thousand six hundred eighty rupees..they recognised the problem as mother board has gone, , , , u have to replace it..it costa about 20, 000 rs.i spended 40, 000 for purchasing the how can i spend 20, 000 that to they are not...