Income-tax notification amendment updates North East Region headquarters designation and appellate authority, effective retrospectively to implement administrative order. This amendment substitutes the Schedule entry for serial number 10 to designate the Principal Chief Commissioner of Income-tax, North East Region, headquartered at Guwahati, and identifies the Commissioner of Income-tax (Appeal) (Central), North East Region, Guwahati, as the relevant income-tax authority; the change is given retrospective effect to implement an administrative office order reallocating an existing post and is certified as not adversely affecting any person's interest.