Is Holkar Science College good for a B.Sc. in CS/PCM, if I couldn't secure admission in DU due to some family reasons?

No, Holkar Science College might not be a good option for B.Sc. One of my friends studied there and according to him the college lacked many things.

There was no proper infrastructure, Buildings were neglected of proper care and maintenance. The ambience and the student crowd is not healthy. As most of them do not have any ambition or interest in learning new things. The students are also not competitive enough, which makes them less dedicated towards their studies. 

Even the faculties are careless and do not bother much if the student is learning anything or not. They often skip classes which ultimately leads to not completing the syllabus.

No cultural events or extracurricular activities take place here. It is suggested that you look for other options, compare them with it and then finalize.