Indian Railways — my reserved seat occupied is forcefully occupied by a person

My name is sameer khairnar. I am currently travelling from thane to nashik road in nandigram express. My pnr number is [protected]. I am quite surprised to see that there is no tc in my coach, but tc has visited sleeper coach but i saw tc visiting the ac coaches. What’s the purpose of reservation if we as common citizens of india are still facing such an issue. I am finding myself helpless as i am unaware whether the concerned person is travelling alone or in a group. I am supposed to occupy side lower berth, and there are in total 4 people including me who have occupied the seats. These seats are ideally supposed to be occupied by only 2 people. I would request the concerned authority to take severe action against such happenings taking place regularly in this system.
I wanted to attach a few photos which i was able to click without the concerned passengers getting noticed, but due to high memory the server is not allowing that to be done.
Expecting a positive response.