Section 246A of Income Tax Act 1961 provides exhaustive list of A.Os orders which are appealable. But in simple terms , one should know that appeal can be filed against

1.intimation u/s 143(1) served on you.

2. Assessment order passed by A.O

3. Penalty orders

4. Any other order passed by

Section 115WM of the Income-tax Act, 1961 – Income-tax on fringe benefits – Chapter XII-H not to apply after a certain date – Adjustment of advance tax in respect of fringe benefits for assessment year 2010-11 against advance tax
Circular No. 2/2010, dated 29-1-2010