Basant and Bhairov are Kalayani devi's son?

I am lost please help. Are Basant and Bhairav are Kalyani Devi's Son and who is Mahavir Shign?

Bhairon is Kalyani devi's own son...But Basant is her elder brother in law(jaith) Mahavir Singh's son... When Mahavir Singh's character was introduced he was an out n out negetive character...his wife dies during d child birth...and before dying she gave her son to her devrani kalyani devi...evn Mahavir Singh once tried to rape Kalyani devi...but she escaped from the haveli and came to jaitsar wid the two sons basant n bhairon...but eventually mahavir singh realized his mistakes n changed...kalyani devi n whole singh family forgave him...he stayed wid them in d their haveli for sometym...

looks like you didn't saw old balika vadhu stories when it was at its best..
Now this show has gone down..