HTC — Issue with touch screen

Address:

Diu, Daman and Diu

Heloo My self Hitesh Recently this may i have bought a new brand HTC desire 826.. it was working good for two mnths but now i m facing touch screen problem. the handset does not get touch properly.. if i press something it opens something else.. i dont know whats the problem. i m working abroad so please anybody can help me out.. thank you