Which of the following remedy or remedies is /are available to the Opponent if the opposition was…

After an opposition has been validly abandoned, the aggrieved opponent can challenge the resulting registration by seeking rectification before the Registrar or the High Court under section 57. Rectification is a challenge to an entry in the register and does not reopen the abandoned opposition itself. A timely extension request that prevents abandonment must be distinguished from seeking to condone delay after a valid abandonment.