How to change categories block title in the left column to show parent category of selected category

[ksinghal]

Hi,

 

I am using Prestashop 1.6 default theme and default categories block. I have added categories block to the left column of my website. The title (i.e. heading) of this block always displays the name of currently selected sub-category. I need to change this title to display the name of parent category of this selected sub-category.

 

I have tried to look into 'blockcategories.tpl', but did not find any solution there.

 

I think there must be some tweak in 'hookLeftColumn' method of 'blockcategories.php', but could not understand the changes that need to be done there.

 

Need urgent help in this matter.

 

Thanks in advance.