ADVICE NEEDED ON LAND CONVERSION

I have a 60-cent plot for conversion from nilam to purayidom.

It is included in the Data Bank. The plot appears to be a paddy field with no trees, but there has been no paddy cultivation for around 30 years.

The adjacent plots on two sides are not included in the Data Bank.

How long will the process take?

Can I file an appeal in court if the application is rejected?

Should I involve agents, or can I do it myself?