What can be the consequences of non-appearance to summons

The proceeding before the proper officer who has issued summons is deemed to be judicial proceedings. If a person does not appear on the date when summoned without any reasonable justification, he can be prosecuted under section 174 of the Indian Penal Code (IPC). If he absconds to avoid service of summons, he can be prosecuted under section 172 of the IPC and in case he does not produce the documents or electronic records required to be produced, he can be prosecuted under section 175 of the IPC. In case he gives false evidence, he can be prosecuted under section 193 of the IPC.

(ICAI FAQ PUBLICATIONS 06-09-2017 Power to summon persons to give evidence and produce documents : FAQ NO. 21)