You can contact us via call or through our website, dial number 9717150098. Our technicians will discuss with you and schedule your device pickup and drop.
Might be you locked your Fn key, first unlock it by pressing fn + shift + num lock. If that works that means your device is absolutely fine, if not visit the nearest service center for checkup of your laptop keyboard.
It can happen if your device cooling fan is blocked, you need to clean your cooling fan otherwise overheating can cause major damages to your device.