$ 0 0 Hi Jyotsna, Go through following link https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&uact=8&ved=0ahUKEwjln_ei_aDKAhXERI4KHULZAUAQFg… I hope you will get everything about LO extraction Regards,Yogesh