Thanks Zimba,
Based on the above confirmation, when I goto to apply for the 10 year route, it mentions the below -
10 year route:
https://visas-immigration.service.gov.uk/product/set-lr
"If you are the spouse or partner of someone who is settled and currently living in the UK and you have completed the relevant period of continuous leave in the UK using the 'Family Route', you cannot use this form. You must instead apply using the form Apply to settle in the UK - Partner of a person or parent of a child already settled in the UK."
I have been on my wife's visa (PBS and further Dependent visa from Mar 2018), but want to apply for 10 year route starting with my tier2 visa from 2013; so its confusing if I really need to stick with the 5 year route only
5 year route -
https://visas-immigration.service.gov.uk/product/set-m