Why the colour of milestones at different places is different & how can we recognize it in Hindi-Twk

Why the colour of milestones at different places is different & how can we recognize it in Hindi- The world of knowledge

Hello Friends and Agar aap india se hai tb to aapne by road travel kiya hi hoga -right... and traveling ke samay aapne milestones ko to dekha hi hoga.....
So guys, Aaj ke is video me ham isi topic pe discussion karne wale h ki ham kaise Milestones की madad se pata laga paye ki Ham kis area me h...
and friends believe me is video ko dekhne ke baad aapka sara doubt clear ho jayega....
Thanks guys for watching this video and checking the discription......

Hindi-Twk