Guru Nanak Medical Centre (GNMC), a unit of Guru Nanak Charitable Trust, will establish medical units in different gurudwaras of the city to provide affordable healthcare and free medicine to the poor. The first unit will be established at Gurudwara Saheb, Ameerpet, within the next two months. The GNMC is equipped with modern medical facilities and will provide free generic medicines to poor patients, a press release said on Tuesday.