Himachal Road Transport Corporation [HRTC] — dirty and stinky seats

I am traveling from shimla to chandigarh, semi delux bus. The seats in bus bus are dirty as they are never been washed or cleaned and are stinking like anything its getting difficult to even breath in here. I too used my deodorant but no effect. Kindly look into the matter as people pay more money so that they can travel with more comfort and ease but travelling in this is worse experience ever in a hrtc. Ordinary busses are way more cleaner than this. This more surprising thing is that it too takes hygenic charges by making people sick in this unhygienic environment