40a(7) and 43b

Please not under section 40 A (7) disallowance is for provision created. Its not for any payment made towards Gratuity.Whereas under Section 43B disallowance is for not paying the statutary dues within prescribed time.

Exemption u/s 54 is available subject to fulfillment of the following requirements:
(i) The transferor shall be an individual or the HUF,
(ii) The asset to be transferred must be of long-term capital asset, being buildings or lands appurtenant thereto, being a residential house,
(iii) The income from such residential house shall be assessable under the head "Income from House Property",
(iv) The transferor assessee should purchase a residential house in India within a period of one year before or two years from the date of transfer or construct a residential house within three years from the date of the transfer of the original house. (Construction must be completed within these 3 years.), and
(v) The new house property purchased or constructed has not been transferred within a period of three years from the date of purchase or construction.