The custom synthesis (CS) business (42% of FY19 revenues) is a margin accretive business but at times lumpy as it depends on offtake from customers (global top 20 big pharma). However, this business has shown a good recovery on account of an improved business environment. Strong R&D; capabilities and India cost arbitrage along with IP adherence are some legacy strengths, which will drive incremental assignments from MNCs. We...