What is the nature of Prime Minister Modi's relationship with Elon Musk?

Prime Minister Modi revealed he has known Elon Musk for a long time, dating back to before Modi became Prime Minister. Their relationship began in a casual, family setting, demonstrating a personal connection that predates Modi's current official position. This longstanding acquaintance provides context for their current discussions on technology and innovation, suggesting their relationship extends beyond formal diplomatic or business interactions to a more established personal connection.