Welcome to HealingWell, vinodnayak. Thyroid disorders are not associated with increased risk for liver problems, so I doubt there's a link there. High blood pressure can be associated, and poorly controlled diabetes can absolutely cause damage to the liver and other organs.
You might want to visit the Hepatitis discussion board here at HealingWell. All types of liver problems are discussed there, and the members may have more helpful information for you.https://www.healingwell.com/community/default.aspx?f=25
Good luck to you and your mother.