Q.  Is it true  that amongst Their Lordships Sri Sri Gaura Nitai, Gaura means Lord Gauranga who is considered  Lord Krishna himself and Nitai means Lord Nityananda, incarnation of Lord Balarama?

A.  Yes.  Lord Gauranga is Lord Krishna Himself and Lord Nityananda is Lord Balarama.  Both of them appeared in Kaliyuga to spread the chanting of the holy names:

Hare Krishna Hare Krishna Krishna Hare Hare
Hare Rama Hare Rama Rama Rama Hare Hare

which is the most powerful way of reviving our God consciousness.