S.no. Ashokan Pillar Persian pillar
1. Monolithic shaft Made up of number of pieces.
2. Outer shaft of pillar is smooth The outer Persian pillar has grooves
3. Bell is only at the top Bell is both at the top as well as bottom
4. Mauryan pillar were erected by digging them in earth without base. Persian pillar were erected on a bell shaped base.
5. Used for inscripting the royal orders Used as a support
6. Part of independent construction. Were part of palace
7. Only human capitals are found Capitals of human beings are also find.