Initially, her husband Ashibu, a private truck driver for a transportation business, opposed her job and preferred for her to stay at home.
"Other wives cooked every day and accompanied the family, but I had to do almost all chores," Ashibu said.
As time went by, he gradually stopped arguing with her and started helping her.
"He helps me sort out letters and make deliveries with his truck sometimes. He has become an 'acting mailman,'" she laughed.
Feng Xinsheng, deputy general manager of China Post, said that because many villages in remote China have no access to pavement, nearly 10,000 mail routes rely on horses, camels or walking letter carriers.
There are 15,000 people who, like Nima Lamu, deliver mail on foot, but few are females, according to Feng.
"Because Diqing is a Tibetan Autonomous Prefecture, we need people who have a good command of both Tibetan and Mandarin," he said. "Nima is the most appropriate one for the job."
Nima Lamu said "the happy faces of villagers" who receive letters inspires her to stick with her job.
She also takes great delight in delivering College Admission Notices.
Upon receiving a College Admission Notice, she departs immediately to personally deliver it to the student.
"I'm very pleased as they happily receive the notices and say, 'Thank you,'" she said. "The more notices I deliver, the more hopeful my hometown will be."
