This data set is obtained from an aircraft campaign Cloud Aerosol Interaction and Precipitation Enhancement Experiment (CAIPEEX) conducted over the Indian subcontinent to measure cloud and aerosol properties. Data presented in the paper Black Carbon as residuals of monsoon clouds can be found. The data consist of in-cloud and ambient atmosphere Black Carbon measurements and cloud properties. The data set consists of the following: 1. Mean Aerosol Size Distribution (#/cm**3 ) below cloud base 2. Temperature (°C ), Total Droplet Concentration (#/cm*3 ), Refrectrory Black Carbon (rBC) concentration (#/cm*3 ) 3. rBC mixing state data 4. Data for Figure1, rBC inside the cloud and ambient atmosphere (#/cm**3 ). 5. Mean Relative Humidity (%) and coating thickness (nm) with standard deviations. 6. Scattering Inacasdence Ratio- Scattering Incasdance Time_ Coating thickness 7. Statistics of small drop, mid and large drop concentrations (#/cm**3 )