( The N is pronounced like 'n' in 'on'. The 'dh' in this name is pronounced like a hardened sound of 'dh' in 'brother' and the other 'd' is pronounced like 'th' in 'brother'. The other N is also pronounced like the first one.)
Gandhamaadanam is the name of one of the seven ( some say eight ) principal mountains that bear the earth. Bheema went there to fetch divine flowers Sougandhikams for Droupadi.
The Indian mythology names eight ( some say seven ) such prime mountains which were believed to bear the earth's weight ( i.e. hold it together). They were
People believe that Hanumaan lives on this mountain.