I worked in Company A for 1.5 years, but they didn't deduct PF. Later, I switched to Company B where I worked for 3 months, and they provided PF, and I obtained a UAN number as well. Now, I have joined Company C without obtaining a relieving letter from Company B. Company C has asked me to fill out Form 11 for PF, but I am unable to provide details of my previous employment PF contributions as Employer C is unaware of my employment at Company B. Is it possible to generate a new UAN number, or will Employer C find out about Company B? This time, I have provided a different mobile number.