Thanks a lot guys. I dint expect so many replys. Let me clarify few points. I do have T4 slip and it also shows in CRA online account. But there is no proof of salary paid bcas he paid me cash. Also, I already mentioned in citizenship application that i worked for him and also gave his address and contact information. Btw, I cant hide that employer bcas T4 is already issued. I have no idea what criminal plan he is making.