Electoral politics

Here are some reports of malpractices in Indian elections. Identify what the problem in each case is. What should be done to correct the situation?
a Following the announcement of elections, the minister promised to provide financial aid to reopen the closed sugar mill.
b Opposition parties alleged that their statements and campaign was not given due attention in Doordarshan aAll India Radio.
c An inquiry by the Election Commission showed that electoral rolls of a state contain name of 20 lakh fake voters.
d The hoodlums of a political party were moving with guns, physically preventing supporters of other political parties to meet the voters and attacking meetings of other parties.