The 2005 10 Rupee "Cross" coin is a Republic India piece from the early years of the ₹10 coin, which is part of what gives an ordinary-looking denomination its following. Its distinctive reverse design is what collectors know it by.
Early-year coins of any denomination attract collectors because the opening issues are the ones most people spent and fewest people saved. Locating a clean example that escaped heavy circulation — with sharp detail and mint lustre intact — is the real difficulty, and it is what separates a keeper from pocket change.
Price always follows year, mint and grade rather than face value, so a worn coin and a crisp one of the same date can be worlds apart. Coinbazzar lists verified examples of this 2005 Cross coin so you can buy the exact piece featured in the video with its grade confirmed.