Which of the following facts about the Cholas is/are not correct?

1. The Chola kings were avid builders.
2. They pioneered a centralised form of government and established a disciplined bureaucracy.
3. It was in the age of the Cholas that the whole of South India was, for the first time, brought under a single government.

The Cholas left a lasting legacy. Their patronage of Tamil literature and their zeal in building temples has resulted in some great works of Tamil literature and architecture. The Chola kings were avid builders and envisioned the temples in their kingdoms not only as places of worship but also as centres of economic activity. They pioneered a centralised form of government and established a disciplined bureaucracy. In the age of the Cholas, the whole of South India was, for the first time, brought under a single government, when a serious attempt was made to face and solve the problems of public administration.