Billal Mir, a young mango grower who has achieved  prosperity by producing chemical-free mangoes at Charbagjuri in Lohagara upazila of Narail district, is now an example for the youth of his neighbourhood how to become self-reliant.   Officials at the  Department of Agriculture Extension (DAE), Narail said Billal has set an example how to grow different varieties of mangoes alongside cultivating other crops.   The mangoes from Billal’s orchard are supplied to other districts, including Dhaka, in addition to meeting local demand.   Talking to the UNB correspondent, Billal said he got involved in mango farming 14 years ago by planting 1,000 saplings of different varieties and then brought 15 acres of land under mango farming after taking it on lease.   “Now, I've 5000 mango trees, including that of some high-yielding varieties like ‘Chosa’, ‘Guti’, ‘Gopalbhog’, ‘Himsagar’, ‘Lengra’, ‘Haribhanga’, ‘Amrupali’, ‘Fazli’ and ‘Ashwini’ on my land,” he said.