I say that if there's another link between the set of users crptotrader, nikjain, Sahyadri and the pawanjain/hasmukh_rawal group then you can conclude decisively that they are, in fact, connected.

Shenanigans have appeared enough in the past for me to hesitate on fully committing to the A->B link from crptotrader007 taking on the reputation of hasmukh_rawal - this is a very thin thread to follow and if you are willing to compromise rigor and affirm the consequent instead of creating a tautological A<->B link with multiple posts connecting the two, then you are free to do so. However, operating under such a system opens up the opportunity for malicious agents to fabricate links.