Mumbai: The real estate market is reeling from a sharp spike in Slum TDR rates, which is impacting their profit margins and sending construction timelines of ongoing projects for a toss. According to industry executives, the TDR in Mulund has shot up from ₹3,500 per sq ft six months ago to ₹6,000 currently. In Borivali, the rate has increased from ₹3,000 per sq ft to ₹5,700 in the last six...