Sec 54F date of agreement to sell can be considered as date of transfer 

Kishorbhai Harjibhai Patel Vs ITO (Gujarat High Court)

In section 54F date of agreement to sell should be considered as date of transfer for computation of prescribed time limit

Conclusion:

Once an agreement to sell is executed in favour of some person, the  said person gets a right to get the property transferred in his  favour and, consequently, some right of the vendor is extinguished. Therefore, the agreement to sell which had been executed on 13th August 2010

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