It is not necessary to register NDA 

2) it is sufficient if it is signed by parties 

3) not necessary to notarise NDA 

Engage lawyer for drafting NDA 

2) legal fees vary depending upon lawyer engaged by you 

25000/- for NDA drafting, vetting and finalization. 

Dear Sir,
If you need any further assistance.You can approach me through Kaanoon or LinkedIn.

- A non-disclosure agreement (NDA), also known as a confidentiality agreement, and it is a legally binding contract in which one party agrees to give a second party confidential information about its business or products and the second party agrees not to share this information with anyone else for a specified period of time

- Since it is an agreement , then you like other agreements , you can register it from the office of the Registrar , however registration is not mandatory 

The NDA can be signed by the parties digitally using docu sign software 

My professional fee for drafting the NDA contract is Rs 10000/- 

Optionally you may also get the document signed before a notary public which is quite easy. Notary fee would be around 300 to 500. The notary public has to assign a serial number to the document so as to collate it with the entry made by him in the tutorial register. The notary fee widely varies among different notaries despite the fees being fixed under the notaries act. A good honest notary would however charge reasonably as above. 

Registration of a NDA is not required 

Dear Client,

Legal fees depends on the cost charged by your lawyer.

Thank You.

Non-Disclosure Agreements (NDAs) establish protections for confidential or proprietary information that must be shared. 

Typically, a legal professional writing the NDA will complete these steps:

• 
  Step 1 - Describe the scope. Which information is considered confidential? Often, NDAs require a catch-all clause that ensures any information remains private that a “reasonable person” would assume should be confidential. 
• 
  Step 2 - Detail party obligations. What should the party that receives the information do to keep it confidential? How will they prevent third-parties from gaining access?
• 
  Step 3 - Note potential exclusions. When can a party share confidential information? What information is already excluded from the definition of confidential information? Legal proceedings and the use of subcontractors represent situations where disclosure may be warranted.
• 
  Step 4 - Set the term. Disclosing parties may want the agreement to last forever, but the receiving parties often desire a time limit. The interests of both parties must be considered when setting the term; there should be no ambiguity regarding the duration of confidentiality.
• 
  Step 5 - Spell out consequences. Will a breach result in the termination of employment or of a business relationship? Can the aggrieved party seek an injunction or even damages in court? 

You may prepare the NDA by yourself if you are conversant with the provisions of law that can be included kin appropriate places of the agreement or can take the help of a consultant/advocate. 

The fee for drafting this NDA  would be informed by the consultant/advocate you would be engaging for the purpose.

The cost for drafting the same will be Rs. 7500 and thereafter you can just enter the details and execute the same with everyone. 

Regards