Trending @Infosys; PF related query

I worked in my first job for 1 year and it has PF trust, later when I joined the 2nd job HR created a new PF account before I provide the UAN number. From my 2nd job I'm using the same UAN, now in 4th Job. I was not having good knowledge in PF, so I didn't merged it. Now the 1st company is acquired by another company. Is there a way to merge the 1st company UAN with my current PF account? Someone please explain