Twelve builders with projects in the island city have rubbed the state government the wrong way, and are now facing a penalty of Rs 31 crore.

They were supposed to hand over the Maharashtra Housing And Development Authority (MHADA) over 93,000 sq ft of constructed homes, after they were commissioned to redevelop 33 cessed buildings in Mumbai Central, Mazgaon, Prabhadevi, Matunga, Mahim, Dadar and other localities in south Mumbai. This area of land can accommodate 220 apartment houses of 425 sq ft each.