The limit to gift to US NRI is 15 K in 2018, every year it is revised.
for future returns.
Generally, you'll pay fees for incoming and outgoing wires. The wire transfer fees your bank charges depend on whether you're sending the money. Some banks charge more depending on how you initiate the wire transfer -- for example, online or in person.
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.