The worth of joining any institute or any program depends on what you expect and what you want. If you have the clarity of why you want to do an MBA, then everything else will fall into place. But do not worry as many freshers have this doubt regarding joining an IIM.
In IIM Rohtak, the majority of the students are freshers. The best thing about IIM Rohtak is that it will expose you to various individuals from diverse backgrounds. This will enrich your experience through peer-to-peer learning. Also, the college will prepare you for the corporate world ahead. The best thing about freshers is that they are almost like a clean slate with no general preference of one specialization over the other which students with work experience generally have.
Now the most important aspect; placements. Apart from a very few select companies, almost all others allow everyone without any bias. In fact, there are many companies that are actually looking for freshers. In terms of experience before the final placements, you can participate in corporate case competitions, guest lectures, research projects, etc. The experience you will gather through your summer internship is also very valuable. The placement committee also tries its best to bring in as many live projects as possible and you could also apply for them. All of these activities will help you to close the gap of not having work experience before significantly.