Is fenugreek seeds oil massage can help to regrow hair because my hair is becoming so thin and too much hair fall is fenugreek seeds oil can help to stop hairfall?

What you are proposing is unlikely to help with re-growing your hair. Products with minoxidil help many people regrow their hair or slow the rate of hair loss or both. It'll take at least six months of treatment to prevent further hair loss and to start hair regrowth. It may take a few more months to tell whether the treatment is working for you. See a doctor for an evaluation.