Consolidate Contacts Across Google Sheets

There are currently several Google Sheets in my Drive holding the same kind of information—people’s full names, phone numbers, and email addresses—but the rows are scattered across different files and sometimes repeated... (Budget: ₹400 - ₹750 INR, Jobs: API Integration, Big Data, Data Analysis, Data De-duplication, Data Entry, Data Management, Excel, Google Sheets, Project Management, Research)