Since the exam is computer based, the answer which is marked on the system will be counted, even if you got the right answer on your worksheet.

Hey!

As per the guidelines of attempting jee mains paper 2 b.arch , candidates are required to click on mark as answered whenever they attempt a question. But as you mentioned that you forgot, still no problem as you have attempted the question on your sheet and you will get marks definitely.

Hope I answered your query.

Thankyou.