Income from QUAIT-Tax Treatment

Hi Frnds

My Brother stays in QUAIT and he remits the income earned there from his NRI account to the bank accounts in India.

Now the income earned there is completely tax free as per the law of that country. Now what is the treatment of the same remitted here ?

Please quote me the section or the circular by CBDT that governs the above provisions. Also if the income is taxable then is it taxable in the hands of the income earner or in the hands of the person to whom the amount is remitted in India.

I know well that to determine taxabilty we have to determine the Residential Status. In Addition to that what is the treatment of the tax free income form such countries.

Thank U 

KRISHNA