| Document and Entity Information | Jun. 30, 2023 |
| Document And Entity Information [Line Items] | |
| Amendment Flag | false |
| Entity Central Index Key | 0001868640 |
| Document Type | 8-K |
| Document Period End Date | Jun. 30, 2023 |
| Entity Registrant Name | VAHANNA TECH EDGE ACQUISITION I CORP. |
| Entity Incorporation State Country Code | D8 |
| Entity File Number | 001-41094 |
| Entity Tax Identification Number | 98-1600102 |
| Entity Address, Address Line One | 1230 Avenue of the Americas |
| Entity Address, Address Line Two | 16th Floor |
| Entity Address, City or Town | New York |
| Entity Address, State or Province | NY |
| Entity Address, Postal Zip Code | 10020 |
| City Area Code | (347) |
| Local Phone Number | 745-6448 |
| Written Communications | false |
| Soliciting Material | false |
| Pre Commencement Tender Offer | false |
| Pre Commencement Issuer Tender Offer | false |
| Entity Emerging Growth Company | true |
| Entity Ex Transition Period | false |
| Units Each Consisting Of One Class A Ordinary Share And One Half Of One Redeemable Warrant [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Units, each consisting of one Class A ordinary share and one-half of one redeemable warrant |
| Trading Symbol | VHNAU |
| Security Exchange Name | NASDAQ |
| Capital Unit, Class A [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Class A ordinary shares, par value $0.0001 per share |
| Trading Symbol | VHNA |
| Security Exchange Name | NASDAQ |
| Redeemable Warrants Each Whole Warrant Exercisable For One Class A Ordinary Share Each At An Exercise Price Of 11.50 Per Share [Member] | |
| Document And Entity Information [Line Items] | |
| Security 12b Title | Warrants, each warrant exercisable for one Class A ordinary share, each at an exercise price of $11.50 per share |
| Trading Symbol | VHNAW |
| Security Exchange Name | NASDAQ |
