पिन और पासवर्ड सुरक्षित रखिए।

रखिए is the polite imperative form of रखना (to keep / to place).

So in this sentence, it means something like:

• keep
• please keep
• do keep

It is used when speaking politely or formally to someone.

Compare:

• रखो — informal, used with tum
• रखिए — polite/formal, used with aap

That is why this sentence sounds appropriate for instructions, warnings, or official messages.

सुरक्षित means safe or secure.

In Hindi, a very common pattern is:

• [something] + adjective + रखना

So:

• सुरक्षित रखना = to keep safe / to keep secure

Even though सुरक्षित is an adjective, the combination सुरक्षित रखना works like the English expression keep safe.

Examples:

• कागज़ सुरक्षित रखिए। — Keep the documents safe.
• पैसे सुरक्षित रखो। — Keep the money safe.

Hindi often leaves out words like your when they are obvious from context.

So:

• पिन और पासवर्ड सुरक्षित रखिए।

naturally means:

• Keep your PIN and password safe.

If you wanted to say your own more explicitly, you could say:

• अपना पिन और पासवर्ड सुरक्षित रखिए।

But in general instructions, warnings, and notices, Hindi often omits अपना / अपने / अपनी if the meaning is already clear.

Because पिन and पासवर्ड are the direct objects of रखिए, and with रखना, Hindi normally does not use को for this kind of object.

So:

• पिन और पासवर्ड सुरक्षित रखिए। — natural
• पिन और पासवर्ड को सुरक्षित रखिए। — possible in some contexts, but less neutral here

In everyday Hindi, को is more commonly used with:

• animate/specific objects
• emphasis
• certain verbs that require it

Here, the version without को is the most natural instruction-style phrasing.

Because रखिए is an imperative, and here it is not agreeing with the objects.

It is really about the person being addressed:

• रखो — informal command
• रखिए — polite command

So whether you are keeping one thing or several things, the imperative form can stay the same:

• किताब सुरक्षित रखिए।
• किताबें सुरक्षित रखिए।
• पिन और पासवर्ड सुरक्षित रखिए।

The verb form here does not need to become plural because of the objects.

It is polite/formal.

The clue is रखिए, which is a respectful imperative. This makes the sentence sound suitable for:

• bank messages
• security notices
• customer service instructions
• public warnings

A more casual version would be:

• पिन और पासवर्ड सुरक्षित रखो।

That would be used with someone you address as tum, not in an official notice.

Yes. रखें is also a polite imperative/subjunctive-style form and is very common in formal written Hindi.

So both are natural:

• पिन और पासवर्ड सुरक्षित रखिए।
• पिन और पासवर्ड सुरक्षित रखें।

In public notices, रखें is especially common.
रखिए can sound a little more directly addressed and conversationally polite.

सुरक्षित is an adjective meaning safe / secure.

It describes the condition in which the PIN and password should be kept.

So structurally, Hindi is doing something like:

• PIN and password [in a secure state] keep

which English expresses as:

• Keep your PIN and password secure/safe

So even though English may feel more verbal here, Hindi uses an adjective very naturally.

They are loanwords from English, written in Devanagari.

• पिन = PIN
• पासवर्ड = password

This is very common in modern Hindi, especially for:

• technology
• banking
• computers
• mobile apps
• online security

Hindi often uses English-origin words in these fields rather than older Sanskrit-based alternatives.

A rough guide:

• पिन ≈ pin
• पासवर्ड ≈ paas-vard / password adapted into Hindi sounds

A few useful notes:

• पा has a long aa sound
• व can sound somewhere between English v and w
• Hindi pronunciation may be a little more syllable-by-syllable than English

So पासवर्ड is often pronounced more clearly as separate parts than in fast English speech.

Yes, Hindi word order is somewhat flexible, but this version is the most natural and neutral:

• पिन और पासवर्ड सुरक्षित रखिए।

You could also say:

• अपने पिन और पासवर्ड सुरक्षित रखिए।
• पिन और पासवर्ड को सुरक्षित रखिए।

But the original sentence is clean, standard, and very natural for an instruction.

The most important thing is that सुरक्षित रखिए stays together as the idea keep safe.

और means and.

It simply joins the two nouns:

• पिन — PIN
• पासवर्ड — password

So:

• पिन और पासवर्ड = PIN and password

This is the normal everyday word for and in Hindi.