This discussion clarifies the various assessment sections under the Income Tax Act, including Self-Assessment (Section 140A), Summary Assessment (Section 143(1)), Scrutiny Assessment (Section 143(3)), Best Judgement Assessment (Section 144), and Income Escaping Assessment (Section 147). It also touches upon assessments in case of search (Section 153A) and protective assessments. Crucially, it confirms that all orders arising from these assessments are appealable.