Permission to sign the family partition deed in phases (one by one) for registration?

Yes, it is possible to sign the Family Partition Deed in phases, especially when some members are NRIs and cannot be physically present. The Special Power of Attorney (SPA) can be used by the two NRI brothers to authorize someone in India to sign on their behalf. However, there are a few legal considerations: Registration Process: The partition deed must be signed by all co-owners and registered with the Sub-Registrar's Office. If signing in phases, the deed should clearly mention the phased execution. Special Power of Attorney (SPA): The SPA must be notarized and apostilled (or attested by the Indian Embassy) in the country where the NRIs reside before it is used in India. Legal Validity: The SPA should explicitly mention the authority to sign the partition deed and handle registration formalities. Conflict Resolution: Since two brothers do not get along, it may be advisable to have a neutral mediator or legal counsel to ensure smooth execution.

Practically, it is not possible as advised by the above expert.  The legal heirs who are not available at the time of registration shall give a GPA/SPA to a person who is available for the purposes.  The GPA/SPA, if executed out of the state or abroad, shall be validated first.

A partition deed executed by multiple parties generally should be signed by all parties simultaneously. 

While the Registration Act allows for documents executed at different times, it's best practice for all parties involved in a partition deed to sign at the same time. This ensures that all parties are present and aware of the terms of the agreement at the same time. 

A partition deed is a legal document that divides a property among co-owners, and it requires the consent of all parties involved. 

Signing by all parties at the same time demonstrates mutual agreement and ensures that everyone is aware of the terms of the partition. 

If one or more parties to partition may not be available  for registration, they can authorise any close relative as their power of attorney agent to execute the documents on their behalf, by following the proper legal procedures to obtain and adjudicate the power of attorney deed. 

Since subject document of "partition deed" is single / sole instrument, it has  to be one and only one for presentation and registration by concerned Sub-Registrar. 

Accordingly all stake-holders / co-owners / title-holders / claimants in  the subject property shall have to execute (sign) the document or authorise someone (on his / her behalf) before its presentation and registration.