Extreme Hardship, Direct Consular processing, regular GC via I-130 or visitor visa?

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Hello,
I am a US citizen for past 3+ years with good financial standing. My father is now old (85 yrs) and after my mother’s death is finding very difficult to live in India by himself. As the only son, it’s creating a lot of stress in my life as I am always worried about him. He is...