It's important to note that the gift must be made out of your own funds and cannot be sourced from any borrowed or loaned funds. Additionally, the gift must be made under the Gift Tax Act, and you may be required to file a gift tax return if the value of the gift exceeds a certain threshold.
If your brother residing in UAE sends money to you in India, the money is not taxable in India. As per the Indian Income Tax Act, money received as a gift from a relative is not considered as income and therefore is not taxable. A relative is defined as spouse, brother, sister, brother or sister of the spouse, brother or sister of either of the parents, any lineal ascendant or descendant. However, it's worth noting that your brother might be subject to taxes in the UAE for sending money out of the country. It's recommended to check with a tax professional in the UAE to understand the tax implications for your brother.