On the day of Akshaya Tritiya, most Indians buy gold with a hope that it will increment their wealth multi-fold. Rama also adored ‘gold’. His ‘gold’ is Sitha herself! Rama felt imperishably rich (అక్షయము =  క్షయము లేని) in the company of Sitha or in the thoughts that lead Him to Her.
Source: JIVA Shamshabad News