Commissioner objection to settlement proceedings can block applications unless Settlement Commission overrules after hearing and notifies Commissioner. Amendment permits the Commissioner to object to proceeding with an application under section 22D where concealment of net wealth particulars or fraud for evading tax has been established or is likely to be established by any wealth tax authority, thereby preventing the application from being proceeded with; the Settlement Commission, if not satisfied with the objection, may after hearing the Commissioner order the application to proceed and send a copy of its order to the Commissioner.