S. 148 : Reassessment–Notice–Reply stating that original return filed should be treated as return filed in repose to notice u/s. 148-Postal receipt is filed–Neither notice u/s. 143(2) is issued nor assessment completed u/s. 144 of the Act nor interest charged u/s. 234A–Reassessment is held to be not valid. [S. 139, 143(2), 144, 147, 234A]