The positive impact of reform was seriously undermined in 1919 by the Rowlatt Act , named after the recommendations made the previous year to the Imperial Legislative Council by the Rowlatt Commission .
The positive impact of reform was seriously undermined in 1919 by the Rowlatt Act , named after the recommendations made the previous year to the Imperial Legislative Council by the Rowlatt Commission , which had been appointed to investigate `` seditious conspiracy . ''