Mirzai, Ahmadi and Qadiani are the names of the same group. The founder of this group was Mirza Ghulam Ahmad Qadiani.Mirza Qadiani was an agent of the British Mirza Qadiani made many claims, he also claimed to be a Prophet. Mirza Qadiani was a bad character drunken liar and cunning man but his followers consider Mirza Qadiani a prophet due to Mirza Qadiani's false and infidel claims, Muslim scholars called him a Kafir, so Mirza Qadiani and his followers are Kafir(non-Muslims).