लेन-देन सत्यापित कीजिए ताकि मैं शिकायत दर्ज कर सकूँ।

लेन-देन means transaction, exchange, or dealings, depending on context.

It is built from:

• लेन from लेना — to take
• देन from देना — to give

So the literal idea is give-and-take. In modern usage, it often means a financial or official transaction.

The hyphen is common because this is a fixed paired expression. You may also see लेनदेन written without the hyphen. Both are understood.

Because Hindi often forms verbs by combining a word like सत्यापित with करना.

So:

• सत्यापित करना = to verify / to authenticate

In the sentence, the polite imperative form of करना is used:

• कीजिए = please do

So:

• सत्यापित कीजिए = please verify

This pattern is very common in Hindi. Similar examples:

• शुरू कीजिए = please begin
• बंद कीजिए = please stop / close
• साफ़ कीजिए = please clean

कीजिए is a polite and respectful command form. It fits formal situations such as customer service, banking, or official communication.

Here is the rough tone difference:

• करो — informal, used with friends, children, or someone younger
• करिए — polite, a bit more conversational
• कीजिए — polite and slightly formal
• करें — also polite and very common in written instructions

So सत्यापित कीजिए sounds appropriate for a respectful request.

A very common alternative would be:

• लेन-देन सत्यापित करें...

That version is also polite and natural.

Hindi often leaves out the subject in commands because it is already understood from the verb form.

In this sentence, the understood subject is आप:

• आप लेन-देन सत्यापित कीजिए

But saying आप is usually unnecessary unless you want extra emphasis or contrast.

So omitting you is completely normal in Hindi imperatives.

Because को is often optional with inanimate direct objects, especially in concise instructions.

So both of these are possible:

• लेन-देन सत्यापित कीजिए
• लेन-देन को सत्यापित कीजिए

The version without को sounds shorter and more direct, which is common in instructions, interface text, and formal requests.

Adding को can make the object feel a bit more explicitly marked, but it is not required here.

ताकि means so that or in order that.

It introduces a purpose clause:

• लेन-देन सत्यापित कीजिए — do the first action
• ताकि मैं शिकायत दर्ज कर सकूँ — this is the purpose or intended result

So the structure is:

• Do X so that Y can happen

This is a very common Hindi connector for expressing purpose.

Because after ताकि, Hindi usually uses a subjunctive-style form to express the intended result.

Here:

• सकूँ is the first-person singular subjunctive form of सकना — to be able to

So:

• मैं शिकायत दर्ज कर सकूँ = so that I may be able to file/register a complaint

If you said:

• मैं शिकायत दर्ज कर सकता हूँ

that would sound more like a separate factual statement:

• I can file a complaint

After ताकि, सकूँ is the more natural grammar.

It is a fixed expression meaning to file, register, or lodge a complaint.

Parts:

• शिकायत = complaint
• दर्ज = entered, recorded, registered
• दर्ज करना = to record/register

So शिकायत दर्ज करना is more official than just शिकायत करना.

Compare:

• शिकायत करना = to complain
• शिकायत दर्ज करना = to formally file/register a complaint

That makes it a good choice in legal, administrative, banking, or customer-support contexts.

It is fairly formal and polite. It sounds natural in situations like:

• customer support
• banking
• dispute resolution
• official emails
• website or app instructions

The sentence is not stiff or unnatural, but it is definitely not casual everyday speech.

Some possible variants:

• कृपया लेन-देन सत्यापित करें ताकि मैं शिकायत दर्ज कर सकूँ।
  Slightly more standard written-formal
• लेन-देन वेरिफ़ाई कर दीजिए ताकि मैं शिकायत दर्ज कर सकूँ।
  More conversational, using the English loan वेरिफ़ाई

So the original sentence is a good polite formal version.