In what way did the Non-Cooperation Movement provide a great national base to the Congress organisation?
OR
How can we say that the Non-Cooperation Movement was carried in a manner that could involve all sections of society?

The Non-Cooperation Movement provided a great national base to the Congress organisation as all sections of society could now actively participate in the struggle for freedom.

There are several reasons to say that the Non-Cooperation Movement was carried out in a manner that involved all sections of society:

1. The Non-Cooperation Movement had a broad-based support.
2. People from all walks of life participated in the movement.
3. Economic boycott affected all sections of society as people gave up their foreign clothes, refused to pay taxes, and stopped using British-made goods.
4. Non-violent protests were used which helped to attract people from all sections of society.
5. Women played a significant role in boycotting foreign goods and participating in public meetings and processions.

All of these factors demonstrate that the Non-Cooperation Movement was carried out in a manner that could involve all sections of society.