Maulana is the title preceding the name of respected Muslim religious leaders, in particular graduates of religious institutions, e.g. a madrassa or a darul Aloom, or scholars who have studied under other Islamic scholars. In short a person who have huge knowledge about Islam in all manners can be a Maulana.
Hazrat Bilal Habshi r.a ki Akhri Azan - Madine Ka Waqia | Maulana Tariq Jameel
