Motherwell and Wishaw MP Marion Fellows joined WASPI Women from Lanarkshire outside Parliament as MPs returned from recess last week.
Thousands of affected women descended on London with women from Lanarkshire branch, but also from branches from Glasgow and the surrounding areas included in their number.
The WASPI women have sustained and grew their campaign for pension age equality after the Tory-Lib Dem coalition implemented a shock equalisation of the state pension age forcing many women to work longer with no warning.
Scottish WASPI women then met with Scottish MPs in a meeting afterwards to discuss how collective action can be taken.
Mrs Fellows said: “It was, and always is, a pleasure to join the WASPI women on their protest and a meeting afterwards.
“On the first day back at Parliament after the break and these amazing women are pounding at the door. It shows their grit and determination to secure their pension rights.
“Inside Parliament, the SNP will not let up either. It’s time the Tories - abetted by the Lib Dems - reverse their policy and restore the pension rights of the WASPI women.
“The pension age needs to be equalised, but it needs to be done so fairly rather than the abrupt changes which has caused chaos for millions of hard working women.”
If you are affected by the pension age equalisation and wish to learn more about the campaign email firstname.lastname@example.org.