Presence of all accused dose not required , mainly complainant and any other accused is suffice.

And to sign vakalatnama, SPa can be execute by him to any one accused.

1) personal presence of complainant is must 

2) on basis of settlement HC can quash FIR

3) presence of all accused is not necessary unless HC insists on their presence 

HC may not accept POA executed by accused who is unable to appear 

What to do than presence is must, or file review and request to condine his presence as duly represented by appointed advocate.

1. In quashing case the physical appearance of the accused persons is not required.

2. If the complainant is giving consent for quashing then the court may ask for his personal appearance but the presence of accused person is never necessary.

3. However if the high court in unlikely event  direct the physical appearance of the accused person then his attendance can not be dispensed with by his POA holder.

See his presence can be waived of by the court you may pray same if complaint is there and agreeing to quashing.

See he can send a POA for filing same along an affidavit.

The accused doesn't have to be present in the hc. However vakalatnama should be signed and any one of you can become a pairokar on behalf of the other persons. You can send a pdf file and he can sign it and send it through post.

Regards 

Dear

For quashing of FIR in High Court the presence of all accused is not mandatory unless the court give such direction.

If court is insisting on the presence of all accused then the accused abroad must send some proof That he is unable to travel to India due to that condition and send affidavit attested from Indian Consulate along with the letter of extemption.

Court may after recieving the letter extempt his personal presence for hearing and quash the FIR. 

If HC is insisting on personal presence of accused   

then  it would  not  accept  POA executed by accused 

The presence of accused not necessary for quashing. His advocate can appear on his behalf. 

Sorry The charge which you have stated in your question are not paid to me so it is not possible to answer your question 

high court may quash the fir in the absence of one accused without seeking his personal appearance. The relevant documents placing before the court the reasons for his absence would be required to justify the non appearance. 

For quashing the FIR, the accused is not required to be present before high court.

Why do you insist on the missing accused's presence before high court when ther is no necessity for any accused to be present before high court for this purpose.

You may clarify the issue once again from your advocate.

If he is not available to appear before the trial court, then a petition under section 205 cr,.p.c. may be filed to dispense with his personal appearance before the said court for the reasons you may rely upon.

Power of attorney cannot be given by the accused to anyone to represent him before the court in the criminal cases.

Dont get misguided by such false assurances.

If high court is insisting his presence, then you may remove his name from the list of the petitioners and apply for quash for others alone who will make themselves available and present before the court on the dates of hearing.

1. As per the information mentioned in the present query, makes it clear that there has been a settlement agreement or deed in writing (which must be in writing only, not orally) But one of the accused is unable to come before the court of law.
2. I would like to tell you that there can be SPA for his appearance in favour of his close one who would also give the undertaking as he or she has the knowledge about the case.
3. But, it would be admissible only if accused is also part of the settlement deed.
4. If he is not then it won’t be possible for judge also to quash it on the basis of the SPA.