Dear Sir,
The taxability arises on the sale of property and not on transfer of sale consideration. The moment your uncle sold the property, you have become liable to pay capital gain tax on your part of share. Now, it is immaterial whether you receive the money by cash or by cheque.
However, if you plan to buy a new house, you can deposit the capital gain amount in capital gain account scheme and use this amount within 2 years from the date of sale to buy a residential property. If you want to construct a property you can do so within 3 years.
For the purpose of account opening issues you can contact bank personnel.
Thanks and Regards,
CA Abhishek Dugar