Covid-19 pandemic and related global lockdown brought the world to a standstill. Apart from the infections and deaths, the lockdown was also impacting the mental well-being of professionals. This could be because of extended lockdowns, work from home (or lack of it), economic uncertainty or other factors. There was a need to understand and measure the impact due to Covid-19 lockdown on professionals. To address this need, a study was conducted amidst the lockdown. The study was based on three themes, viz. Simplicity, Quantifiability, and Generation of Non-obvious insights. Under the theme of Simplicity, a new JUMA framework was designed and a survey (titled ‘Lockdown & me’) was launched for the carefully chosen samples. The framework was scientific, yet easy to use for a lay person. The survey was well received and responded, and the data was objectively aggregated using the new JMI (mental well-being Index) in line with the theme of Quantifiability. Finally, the data was studied for patterns and analysed using statistical techniques like ANOVA. This led to some critical Non-obvious insights - like ‘professionals of 32-41-year age group are most stressed’ or ‘women are more stressed than men’.