How did the knowledge of ancient texts help the reformers promote new laws?
The reformers who were well versed in Sanskrit, Persian and several other Indian and Europeon languages, tried to show through their writings and tried to convince people that the practices such as widow burning, caste distinctions, child marriage, etc had no sanction in ancient texts.
Their knowledge of ancient texts gave them immense confidence and moral support which they utilised in promoting new laws. They did not get feared when people raised voice against the reforms they had brought.