आज रिचार्ज कीजिए; फोन तुरंत जुड़ेगा।

Because रिचार्ज is an English loanword, and Hindi commonly turns such words into actions by adding a form of करना (to do).

So:

• रिचार्ज = recharge
• कीजिए = polite imperative of करना

Together, रिचार्ज कीजिए means please recharge or do a recharge.

This pattern is very common in modern Hindi:

• कॉल कीजिए = make a call
• मैसेज कीजिए = send a message
• बुक कीजिए = book it / make a booking

कीजिए is a polite command form of करना (to do).

It is used when speaking:

• respectfully to one person
• to customers
• to the general public
• in advertisements and announcements

So रिचार्ज कीजिए sounds polite and appropriate for an ad.

Compare:

• करो = do it (informal)
• कीजिए = please do it (polite/formal)

Yes, in everyday use they are very close. Both are polite imperative forms of करना.

• कीजिए is very common and often feels slightly more standard
• करिए is also common in speech

So both of these can work:

• रिचार्ज कीजिए
• रिचार्ज करिए

In this sentence, कीजिए is just a polished, standard choice.

The object is understood from context.

In full, the speaker might mean:

• फोन रिचार्ज कीजिए
• अपना नंबर रिचार्ज कीजिए
• अपना प्लान रिचार्ज कीजिए

But in ads and short messages, Hindi often omits words that are obvious. Since the second clause mentions फोन, the listener easily understands what is being recharged.

आज means today, and putting it first gives it emphasis.

So आज रिचार्ज कीजिए strongly highlights the timing: Recharge today.

Word order in Hindi is flexible, so you could also say:

• रिचार्ज आज कीजिए

But the version with आज first sounds more natural for an advertisement or call to action.

जुड़ेगा is the future form of जुड़ना, which means to join, to become connected, or to get connected.

In this telecom context, it means something like:

• the phone will get connected
• the service will be activated/connected
• the line will start working

So this is not really about a phone physically joining something; it is about network/service connection.

Because the subject is फोन, and फोन is masculine in Hindi.

The future verb agrees with the grammatical gender and number of the subject:

• फोन जुड़ेगा = the phone will connect
• लाइन जुड़ेगी = the line will connect

So जुड़ेगा is masculine singular, matching फोन.

Because फोन is the subject here, not a direct object.

The verb जुड़ना is intransitive, meaning the subject itself becomes connected.

So:

• फोन जुड़ेगा = the phone will get connected

If you used a transitive verb like जोड़ना (to connect something), then the structure would be different. For example:

• वे फोन को जोड़ेंगे = they will connect the phone

But in your sentence, the idea is the phone will connect, so no को is needed.

Not necessarily. In ads like this, फोन often stands for the phone connection, mobile service, SIM, or number.

So the sentence is slightly compressed. A fuller real-world meaning might be:

• आपका फोन तुरंत नेटवर्क से जुड़ जाएगा
• आपकी सेवा तुरंत चालू हो जाएगी

But ad language prefers short, punchy wording, so फोन तुरंत जुड़ेगा is used.

तुरंत means immediately, right away, or instantly.

It emphasizes speed:

• फोन जुड़ेगा = the phone will connect
• फोन तुरंत जुड़ेगा = the phone will connect immediately

This is especially common in promotional language, where the seller wants to promise fast activation.

Yes. In modern written Hindi, especially in ads, notices, and promotional text, punctuation is often used much like in English.

The semicolon separates:

1. the action: आज रिचार्ज कीजिए
2. the result: फोन तुरंत जुड़ेगा

So the structure is basically:

• Do this; then this will happen.

A comma, dash, or full stop could also appear in similar writing. The semicolon just makes the cause-and-result relationship neat and clear.

Yes. That is a very natural English rendering.

Hindi often leaves out words like your and and when they are easy to infer. So the sentence is compact, but the natural English translation can be slightly fuller:

• Recharge today; your phone will connect immediately.
• Recharge today and your phone will be connected right away.
• Recharge today for instant phone connection.

All of these reflect the same basic idea.