I'm not entirely sure who 'Indu Sarkar' specifically is without more context. There could be many people with this name. It could be an individual known in a particular community, a local figure, or someone with a more personal story. More details would be needed to accurately tell the'real story'.
The story of Indu Sarkar is said to be inspired by real-life events during the Emergency period in India, but it's not directly based on a specific individual.
Since we lack the details of the 'Mona Darling full story', it's difficult to define who Mona Darling is precisely. She might be a protagonist in a love story, facing challenges in her relationship. Or she could be a strong - willed character in a thriller, fighting against some sort of danger. There are countless possibilities depending on the nature of the story.
I'm not entirely sure which specific 'Sarkar real story' you are referring to. There could be many stories or movies named Sarkar. It might be about a political drama, a family saga, or something else entirely.
Another theory is that it might be a composite of several different women. However, historical evidence mostly points towards Lisa Gherardini. She lived in the same time and place as Leonardo da Vinci, and the connection through her husband's commission is a significant factor.