Sagar Manthan is an amazing story. In short, gods and demons churned the ocean. During this process, lots of things came out. Poison, which Shiva dealt with. Also, useful and precious items like a magic cow, a special tree. But the main thing was the Amrita. The fight for it was intense between good and bad forces. The devas were the ones who were supposed to have it, and in the end, they got it, mainly because of Vishnu's help. This story is important in Hindu culture as it shows how good can triumph over bad even when they have to work together initially.
Since I have no details about 'human sagar', I can't really provide a proper life story. Maybe if you could give some additional facts like his occupation, where he is from, or some major events in his life, that would be helpful.
I'm not sure specifically which 'Sagar Gupta' you are referring to. There could be many people with this name. However, generally, a success story might involve aspects like achieving great career heights, for example, in business by starting a successful company, or in a profession like becoming a renowned doctor or engineer through years of hard work, education and determination.
The main elements are the devas and asuras churning the ocean. Also, the Mandara mountain and Vasuki the serpent used for churning. The emergence of Halahala, which Shiva drank, and the Amrita, which was the cause of a big struggle between the two groups. There are also things like Kamadhenu and Kalpavriksha that came out during the churning.
Since I have no information about 'Humane Sagar', I can't provide the life story. But if this is a public figure in a specific field like art or sports, you could mention that so that I can do more research and answer properly.
As I don't know who Humane Sagar is, I can't list the key events. It could be that he has had experiences related to his education, career, or personal relationships, but without more info, it's impossible to say.
Again, without knowing who human sagar is, it's hard to say. But generally, key elements in a life story could include family background, education, career choices, and major relationships.