A brother-sister duo in Madhya Pradesh's Narsinghpur district have set an example by donating their scholarship and pocket money to a school for constructing a toilet. In a country where open defecation is alarmingly high, Memoona Khan and Aamir Khan have been helping other children in various ways. Earlier, they had helped a school in their locality get an electricity connection. Memoona, the brand ambassador for the state government's anti-child marriage campaign 'Lado', says the duo save their allowances and use it for such charitable causes.