Can anybody tell about the ancestral tree of Sen or Sengupta Baidya Caste?

Baidya caste is a unique brahmin cast.during the vedic period we were pure brahmin.called as swaraswat brahmin. By the ballan sen we were called vaidya and so far we called.all the traditions of brahmin and baidya are same.none can marry without upanayan.(poita)