You must register flat in your name 

2) registration of sale deed confers clear and marketable title to property 

3) if you don’t register flat you would not be able to sell flat in future 

4) in event of builder demise you will  have to face lot of legal complications 

See builder can charge penalty as per the agreement if you are already in possession you should get flat registered as till now without registration you are not owner of the flat and you cannot be in possession of the same.

- Now in many states, Occupying an apartment without Registration and occupation certificate is considered an offence under law, and the authority has decided to take serious action against the same.

- Hence, you should try to register the said flat in your name earliest as insturcted by the builder.

- Further if the circle rate /market value will be increased, then you will have to pay more for stamp duty as well.

- And also in the event of death of the landowner/builder , you can face much trouble for registering your property.

It is not the builder who can charge the penalties. Registration law provides provision for penalties for delay in registration at different rates.

You will need to pay the penalties to the govt. for delay registration.

1. Registration of "immovable property" is mandatory, since only registration will give a  "Clear Title" to the property for all futuristic legal purposes such as Sale /Transfer /Gift /Donate /Mortgage /whatever....

2. IF one buyer is not available in India, THEN the other buyer can give a registered Power of Attorney (POA) to the available buyer for registration of property, which would legally final and conclusive.

3. Builder is legally not entitled to levy any penalty and he might be levying such penalty as a preemptive measure to register a Society /Association, to persuade you to hasten up the process.

Builder can't charge you but you need to see your agreement if it specifies any charges to this aspect. Later you may incur penalty for late registration from sub registrar office

your brother can execute POA in your favour or that of family member for registration purposes 

2) POA should be attested before Indian consulate abroad

3) builder cannot charge you exorbitant amount as penalty 

Builder cannot charge once full payment done but penalty will impose by registrar office for delay in registration if you will show purchase and delivery of possession in 2016. 

And without registration of sale deed ownership dose not transfer. Either brother presence can be dispense by executing POA in either favor.

Now press for registration without any thing payable to builder.

See if in terms of agreement signed between you and builder if builder has notified such condition then he can impose such penalty also if you want some reasonable.extension you can seek in that case if he apply penalty same can be contested.

See for that your brother can give you power of attorney to register the sale deed. He can send a notarized power of attorney signed with embassy in your name and on based of same you can register in your joint names.

You have to register the property. You have the possession from 2016. Therefore engage a lawyer who will talk to him on your behalf. He cannot levy a penalty as he is no government authority.

Regards 

You should register it. 

You cannot take possession of property and occupy the property before getting it registered it on your name.

Therefore you cannot claim exemption for the reasons cited by you.

The builder can impose penalty for the delay in registration since it is not his fault, therefore why do you want to take a risk, what is the problem that you face for getting the property registered when you have already paid all the dues.

The inordinate delay in getting the property registered on your names is not justified.

You say that you took possession in the year 2016 and you are not willing to get it registered even after three years of taking over the flat(?)

The reasons you have cited for not willing to register the property even at this long delayed stage is absolutely not maintainable, if you agitate the decision of the builder and approach court of law for relief, yo may not get any respite since you do not have any legally valid reasons for this inordinate delay to get the property registered on your name despite taking possession of the property well ahead i.e., more than three years ago.

Yes builder can charge penalty for not registering the flat.

If you need some more time then you send should reply of the notice demanding some extra time to make travel plans when you both can come and register the flat.

 property registration is very much necessary. It is final complete agreement between two parties. Once registration of property is completed, then you are the legal owner of that property. Unregistered owners are illegal in front of law

If the agreement states the penalty charges then you are liable to pay penalty as per agreement. . 

Send a legal notice to the builder calling upon him to register the property immediately in your name. Non-registration of property amounts to deficiency of service hence file consumer complaint under the provision of Consumer Protection Act, 1986