Hi Lakshmi,

Since you failed to choose eligibility clause A in the concerned form and instead chose clause B, you have to make sure or rather you just have to fulfill the eligibility criteria associated with clause B for that particular registration form or else it might so happen that your candidature will be canceled if you cannot adhere to the clause B eligibility criteria.

My advice to you regarding avoiding this scenario is that you write a formal letter stating this entire issue and send it to the concerned authorities of the exam by post so that at the time of document verification you can justify this mishap and might even save your candidature.

BEST WISHES!