Indian System of Medicine (ISM) doesn't include :

Unani Allopathy Homeopathy Yoga

Allopathy

The correct answer is option (2) : Allopathy Indian Systems of Medicine (ISM) : It include six systems - Ayurveda, Yoga, Unani, Siddha, Naturopathy and Homeopathy (AYUSH). ****** Note: from old NCERT Book (Pre rationalised).