S. 234A : Interest-Default in furnishing return of income-Marginal delay in filing of return-Interest u/s 234A is waived-Advance tax-Deferment of advance tax-Waiver or reduction-Board’s F. No. 400/129/2002-IT(B), dt. 26th June, 2006-CBDT Circular, does not specifically deal with waiver of interest under S.. 234B and 234C-Does not specifically deal with waiver of interest-No impediments operating against the assessee from paying the advance tax within the time line under S. 211. [S. 119, 211, 234B, 234C, Art. 226]