Business optimism of India Inc. is at a 10 quarter low in the July to September quarter, that's as per the Dun and Bradstreet Business Optimism Index, which measures the pulse of the business community by surveying 400 companies across sectors to review their optimism across 6 key parameters. CNBC-TV18 spoke with Manish Sinha MD of Dun & Bradstreet to discuss the findings of the survey conducted during the month of June.