Correct option is C
To avail deduction u/s 91 of the Income Tax Act, 1961, the following conditions should be fulfilled:
a. The Assessee is a tax resident in India during the relevant previous year. This means that the individual should be considered a resident of India for tax purposes.
b. The income accrues or arises to him/her outside India. The income should be earned from a source outside India.
d. The Assessee has paid tax on his/her foreign income in the foreign country. The individual must have paid tax on the foreign income in the country where it was earned.
e. India does not have any agreement for relief from double taxation with the country. There should be no agreement between India and the country where the income has accrued or arisen for relief from double taxation.
Therefore, the correct code is (c) a, b, d and e only.