I am go for a technical valuer in bank where i go for got the certificate of valuer of home loan because i am in mechanical field pls guided

I am go for a technical valuer in bank where i go for got the certificate of valuer of home loan and mortgages because i am graduate in mechanical field so pls guided what i do for this because i am already work in than last two yrs with the other architect and associate so pls suggest me thanku