Irctc — dirty bedding

I was travelling from new Delhi to Manduadih and was provided dirty bedding. It happens almost every time. Every time I have to get my bedding changed and still many times the ones I get are not clean. The train employees say that the packets are closed and it's not in their hands to check if the bedding is clean or not. They say that complaining about it to the authority is the only solution. I am complaining about this with the hope that my complaint gets attention and some action be taken so that the passengers do not have to face this inconvenience every time they travel by train.