  The no-hair theorem, which postulates that all black holes can be completely
characterized by only three externally observable parameters: mass, electric
charge, and angular momentum, sets constraints on both the maximal angular
momentum and maximal electric charge. In this work, we would explore the
consequence of these for the formation of primordial black holes in the early
universe and also the formation of black holes due to collapse of dark matter
configurations and how this could be used to probe the conditions in the very
early universe and constrain the epoch when baryon asymmetry was established.
