Long term capital gain tax

Hi ,

 I have sold a land that is long term capital gain . have deposited the money in SBI .

Now want to buy a bond.

1) As SBI has not given any cheque book , How to pay to Karvy to buy bond.

2) Have sold on 9th Dec 014. so Six Month is 9th june 2015 .

  Approximately How much time it will take to buy bond if I apply As I feel I am running out of time.

Thanks

Rajesh