Dear Friend,
If you have really urgency for the sale proceeds and thus do not want to pay TDS, then you may apply to the AO u/s 197 of IT Act, whereby you will be issue a non deduction/lower deduction certificate of tax by the AO in eligbile cases.
But as you know the structure of our Govt. departments, you may undergo difficulties in the same. Moreover the registrar may defer from registering the sale deed unless the TDS challan is submitted, even though the certificate of non-deduction is produced even though you are lawfully eligible for the same. This is also an anomaly of our govt. department structure.
Hence I suggest that you opt for the 197 route only in case of urgency.
To answer your second question,
Yes you can claim the refund of 1 lakhs in the F.Y 2014-15 itself. It does not matter whether you invested u/s 54EC in the next year.