Hi, I want to inform everyone that please avoid khyber air-conditioning ghaziabad, they claim to be authorized service center of Hitachi but when I checked with HITACHI they completely refused to have any relation with KHYBER. Khyber took my A/C for gas filling with promise to return next day, even after 15 days I am calling them and they are not returning it. I am planning to lodge a police complain against them. But, please avoid them... read full review »