Yes, it is very difficult to tackle such politicians who have already won the election due to their muscle power and now they become of the minister of state with their influence. They don't fear anyone because of their enormous power. If you are facing any problem and want to resolve the issues connected with your your area, such leaders would not respond favourably and in case of discussion, such leaders would be overexcited and ultimately harm you because of their underground connections.
The best recourse is to defeat such leaders alerting the voters in that area so that he may not win the election. Even if they win the election, they cannot complete the due term because of their unfair means and ultimately they may remain behind the bars. Hence for them, their winnings are not the guarantee of their success.