Queries regarding nps withdrawal and tax benefits

My father has just retired from the State Govt at the age of 58 years. He is pensioner and is not going to join any job after retirement. He opened eNPS account to get addiditional benefit of Rs. 50000 under Sec 80CCD(1B) three years ago. My question is if he invests 200000 in NPS now after retirement from his pension, can he claim tax benefit under section 80CCD(1B) and 80ccd(1)?. Can he contribute in NPS account upto 70 yrs and claim deduction till that age?

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