Raj gaanE gaata hai. = Raj sings songS....Raj gaanA gaata hai = Raj sings a song.
That must have been Raj sings song because in the hindi sentence any singular matter is not mentioned
But in English, "Raj sings song" is not a correct sentence, you must add an article, a/an/the. Articles don't exist in Hindi, so this is the closest translation.
Is गीत/गीता (geet/geeta) also an acceptable way to say "song"? I've heard this word mostly in Sanskrit sources (Bhagavad-Gita, Gita-Govinda, etc.), but I'm not sure if it's used in modern Hindi.
'Geet gaata hai' is perfectly fine , geeta is not
who will be my friend here I am pahal
That must be raj ganna gata hai because its not told whether that how many songs he sings that's wrong correct it