Dear,
Later Chola Kings including the Great Rajendran made major attempts to unite the entire Kingdom by various means such as
1. Ritual and religious means by protecting religious institutions and by construction of shrines
2. Establishment of tax free grants
3. The disputes were setteled effectively by arbitration
4. Highly intellectural were recruited for tax collection and distribution of resources
All these factors and similar factors though leads to expansion, urbanisation of the Chola Desam but the great Chola Kingdom could not exceed for more than five hundred years
What do you feel the reasons for the fall down of the Chola Empire even though it has many unique good features compare to other Kingdoms?