There are few colleges who offered admission in polytechnic diploma in wood technology  like Government Polytechnic college Kannur Kerala (gptckannur.in/), Kashmir Government Polytechnic college (http://www.kgpolytechnic.org/).For further information visit the official website of these colleges contact them through contact number because of exact eligibility information doesn't provide in his websites so I suggest you directly contact them through contact number which is mention in official sites.

All the best dear, your choice is unique (wood technology).