Lenovo Y510
My laptop is not working well

I M REALLY FED UP FROM LENOVO SEVICES.I HAVE PURCHASED A LAPTOP 11 MONTHS BEFORE.NOW ITS NOT WORKING WELL.IT HAS CREATED SOME PROBLEM LIKE

{1} GET SO MUCH HOT IN 20/30 MINUTES

[2] BATTERY PACK UP IS VERY POOR

[3]AUDIO PORT IS NOT WORKING

I M TRYING TO MAKE A CALL AT TOLL FREE NO FROM LAST 3 DAYS BT NO RESPONSE FRM THEIR.I live in hissar[haryana] and want to register my complain and want a appropriate solution as soon as possible.pls give give me the benefit of my LENOVO WARANTY PERIOD.