I am from India. My husband is going to the UK to work for 5 months. So I want to go with him as a tourist, but I'm unemployed and don't maintain a proper bank balance to travel. But I can manage all of the travel expenses before leaving, which would be given by my father-in-law from India. I can show his bank balance details. Is this approved in the UK visa application?
You will need to demonstrate strong ties to India that are a compelling reason to return but without a job and assets of your own this will likely be very difficult to do. Obtaining funds from your father-in-law to improve the appearance of your financial situation is unlikely to help. There is an excellent answer here UK visa refusal on V 4.2 a + c (and sometimes 'e') that may help you.