Why IT Dept/Govt not considering to deduct tax from pension paid to persons in advance and help pensioners?

We are living in India and old persons find very difficult to visit IT office or any tax consultant to pay dues.It will be good if their tax is deducted at source (if they are eligible) In other nations due to availability of pure items of meals the longevity is more but in India he becomes old very early due to socioeconomic reasons.Our PM/FM must consider.