The phrase "rider sum" refers to the additional amount of money that needs to be paid on top of a certain agreed-upon price or fee. It is an extra charge or cost. Full definition
It pays a lump sum benefit equal to rider sum assured in case the life assured is diagnosed with any of these illnesses. (coverfox.com)
If you opt for this rider then on death your family will get additional amount equal to term assurance rider sum assured more with the basic sum assured value. (mydailylifetips.com)
Get lump sum amount equal to rider sum assured on diagnosis of any of listed critical illnesses as per your listed plan. (exidelife.in)