Godrej Appliances - Warranty not claiming

I buy a air conditioner of godrej on ** feb **** after * years its complaint and registered on godrej service center kollam . Air conditioner on its warranty period of * years. Service man told that the compressor pcb main board is complaint and they want the amount of ***** for replace the board. I asked for the warranty but they told that the product cant claim warranty . The shop also told me its on warranty period and the salesman told me while selling the product the board has * years warranty but now * year over the system is dead and money loss kindly take action for claim the warranty or product replace .