To the best of my knowledge, it looks to be the description of 'raama'
kiliing 'vaali' and giving the kingdom to 'sugreeva' and does not look to
be prior to 'seeta' abducted by 'raavaNa'.
1st line: hari sutu = angaduni (son of hari= kOti; vaali in this context)
2nd line: hari sutu = son of indra = vaali (hari= indra in this context)
hari puramu = kishkindha ( hari= kOtula; nagaramu)
3rd line: hari vibhunaku = sugreevunaku (hari = kOtula; raajunaku)
hari madhyanu = taaranu (hari madhya = simha madhya; simhamu
vale sanna naina nadumu galadi= stree)
4th line: hari raajya padamu = kotula raajyamunu (hari = kOti)
hari = raamuDU (hari= Sree hari)
Sree raamuDu, vaalini samharinci; aatani sutuDaina angaduni Sevakuni gaa
goni (vaali entrusts angada to raama before he dies); taaranu, vaanara
raajyamunu; sugreevuna kosagi; kishindhaku pampenu. (As a rule of
'araNyavaasa', raama should not enter any city during that period.)
With regards,
Prabhakar Vissavajjhala
P.S.:(Also my guess is in the 4th line
....'nicci' is more appropriate than 'nicce'.)