Solution:The Army operates six operational commands and one training command. Each command is headed by General Officer Commanding-in-Chief with the rank of Lieutenant General. Each command is directly affiliated to the Army headquarters in New Delhi.
• Central Command (Headquartered at Lucknow)
• Eastern Command (Headquartered at Kolkata)
Northern Command (Headquartered at Udhampur, J&K),
• Southern Command (Headquartered at Pune, Maharashtra)
• South-Western Command (Headquartered at Jaipur)
• Western Command (Headquartered at Chandi Mandir, Panchkula, Haryana)
• Army Training Command (Headquartered at Shimla)
Hence, options (b) is not a command of the Indian Army.