Tell those sr citizens to fill there qoutas first then think of tatkal qouta.
Becaz of high increase in qouta of lb ,family of 3,4,5,6(including women's not getting lower berths) .
Lb berths most in long distant train remain vacant as sr citizens don't often travel end to end, also those left over seats will be such that a pax needs tkt in one leg but due to non avl he can't but tkt will be avl in other leg of journey here tkt will remain vacccant all the way