(SUBHEAD) Chandigarh: In an unprecedented action, Punjab Chief Minister Bhagwant Mann on Friday personally supervised a government drive to take possession of 2828 acres of illegally encroached prime land worth Rs 350 crore in Block Majri of the SAS Nagar from 15 influential encroachers including sons of newly elected MP from Sangrur Simranjit Singh Mann and former Minister Gurpreet Singh Kangar.