Once an old age mother was sitting

Once an old age mother was sitting with her son...

Ek kawa pas betha tha maa ne pocha k beta yeh kia hy?
Betha: yeh kawa hy
Maa ne kuch der baad phir pocha k yeh kia hy?
Betha: yeh kawa hy
Maa ne phir pocha yeh kia hy?
Betha ghusay sy bola kitni baar btaon yeh kawa hy?
Maa hansi or boli...
betha jab tu 3 saal ka tha..
yahi jaga thi or isi trah tum ne 40 baar pocha tha k yeh kia hy...
or mein ny 40 baar tera matha choom k btaya tha k yeh kawa hy

(Plz b patience, humble & resppect ur parents)