Ratan Tata's passing has left a deep sense of grief among millions of Indians.Shantanu Naidu, Tata's closest friend, expressed his sorrow and struggle to accept that he will never see Tata smile again.Naidu received messages of support from strangers and shared a photo of Mumbai policemen hugging him, symbolizing the comfort of the whole city.Naidu expressed that the void left by their friendship is a lifelong struggle, and bid farewell to his dear lighthouse.