Helping a Friend Locate Her Lost Mother from 1980 – Need Guidance

I’m assisting a friend in finding her mother, whom she lost back in 1980. Here’s what I know so far: * I have mother full name and religion, she is hindu * I’ve used AI tools to narrow down possible locations where she might be. * She also has two daughters whose original names I know. only first name, have photos of them when they where kids. Based on the data, these are the places where her mother is most likely to be, ranked from highest to lowest probability: 1. Pilibhit, Uttar Pradesh 2. Lakhimpur Kheri, Uttar Pradesh 3. Pilibhit-Dudhwa-Sohelwa Belt, Uttar Pradesh 4. Dudhwa National Park Region, Uttar Pradesh 5. Shahjahanpur, Uttar Pradesh 6. Bareilly, Uttar Pradesh I would appreciate any guidance, resources, or advice on how to proceed with the search. If anyone from these areas or with experience in similar searches can help, please let me know.