54 EC prevlosure teg

No, not possible. 

The 54EC bonds cannot be closed before maturity by the assessee.

If you have taken the loan against these bonds by keeping them as security, then the exemption availed earlier will be taxed as capital gain in the previous year in which the loan has been taken.

In case of any further queries, kindly mail me at casoravgupta @ gmail.com

Thanks & Regards
CA. Sorav Gupta
(Practicing Chartered Accountant)