section 35CCB: Provided that the association or institution is for the time being approved for the purposes of sub - section (2) of section 35CCB;] 4[(cc) any sum paid by the assessee in any previous year ending on or before the 31st day of March, 2002 to such fund for afforestation as is notified by the Central Government under clause ( b) of sub -section ( 1) of section 3 5CCB;] 5[(d) any sum paid by the assessee in the previous year to a rural development fund set up and notified by the Central Government for the purposes of clause ( c) of sub -section ( 1) of section 35CCA;] 6[(e) any sum paid by the assessee in the previous year to the National Urban Poverty Eradication Fund set up and notified by the Central Government for the purposes of clause ( d) of sub -section ( 1) of section 35CCA.] 7[(2A) No deduction shall be allowed under this section in respect of any sum exceeding ten thousand rupees unless such sum is paid by any mode other than cash.]