meanings for 'ramakadha' from the movie bharatham

[Raga Man]

I was listening to this great song from Bharatham sung by KJY-
'ramakadha ganalayam'. Can someone interpret the meanings for the
lines? These are the lyrics as I could make them out (I don't
understand Malayalam). Thanks in advance!

-Raghav.

===
Ramagatha gaanalayam mangalam en thamburuvil pagaruga saagarame.sruthi
laya
saagarame.

Saagedham paadugayay he Ramaaaa.Kaadharayay, shaarigayay, saagedham
paadugayay veendum, Ramagatha.

Aaranya gaandam thaedi .Seetha hridhayam thaengi.

Valmeegangalil yedhoooo thaabasa mounamunarnu veendum.Raamgatha.

Sa risa sassa risa..indhradanussugal meettiya devagal aadhinaama
gangayaadi
ragupathi Ramajayam, ragu Ramajayam sree baratha vaakya bindhu choodi
,sodhara paadhuga poojayil aathmabatham pranavam vidarnularjularnja
sarayuvil,mandra mridhanga tharanga sugam sara vega jeeva thaalam aegi
maruthiaaa.

Jala ganda soorna doopa deepa kalayay , mandra yandra
thandragalithamunaru
saama gaane lagariyodey anayu Rama, SriRama, Ramaaa, Ramaaa.