Did this translation long time back....just thought would re post it today.
-------------------------
Shyama to Bajrasen -

Forgive me my Love
What is the curse for the sin I did,
Let the almighty bestow upon me
You forgive me
My sin was not in thy Book,
sinner I am in God's feet
There God shall unleash his rage,
retribution be silently accepted by me
never shall be able to bear your unforgiveness
Forgive me

Bajrasen -

Forgive her, I could not
Forgive my feeble mind my Lord
My love was crying, My love was dying
of shame of remorse.
Alas! I could not take her in my arms
I hurt my love
Sin I did to punish sin
Forgiven she would be by thee,
she who falls tumbling on thy feet
of shoulder loaded with sin.
Know I this my Lord,
that thou shall never forgive me,
never forgive me for my mercilessness.

From 'Shyama' by Rabindra Nath Tagore