No, Kireedom is not a blue film. But in the context of vintage recommendations, it is often mislabeled due to the infamous "Sankaran Nair vs. The Board" scene. However, for true blue cinema, look at its B-movie counterpart: starring Suresh Gopi, which is pure vintage sleaze.
Here are some classic Malayalam cinema and vintage movie recommendations: No, Kireedom is not a blue film