I have the tune in a book of Irish songs, but I think my daughter took it to school for a project. If I ever get it back I could make you a midi. There are chords in this thread Lyr/Chords Req: forty shades of green.
The Shalimar is a river, but I can't find it in my Atlas - maybe Africa. There was a Victorian drawing-room ballad "Pale Hands I Loved Beside the Shalimar". And THE HIPPOPOTAMUS SONG(Mud, Glorious Mud) by Flanders & Swan starts " A bold hippopotamus was standing one day, by the banks of the cool Shalimar"