As of 13 October 2026, Bonfiglioli Transmissions, Tonbo Imaging India, Sahajanand Medical Technologies and Zetwerk are listed for IPO subscriptions from 15 to 19 October, with an expected listing date of 23 October. Their reported issue sizes range from ₹475 crore to ₹5,012 crore. The GMP figures below are unofficial snapshots—not exchange prices, assured listing prices or promised gains—and Bonfiglioli’s reported upper price-band limit differs between secondary listings.
Dates and reported IPO details
India IPO’s calendar lists all four as mainboard IPOs, with BSE and NSE as the exchanges. Its schedule and terms are secondary-source information; check each company’s final offer documents or price-band notice before applying.
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| Issuer | Offer window | Expected listing | Reported price band | Issue size | Minimum lot | Exchange |
|---|---|---|---|---|---|---|
| Bonfiglioli Transmissions Ltd. | 15–19 October 2026 | 23 October 2026 | ₹558–584 | ₹2,534 crore | 25 shares | BSE and NSE |
| Tonbo Imaging India Ltd. | 15–19 October 2026 | 23 October 2026 | ₹665–700 | ₹852 crore | 21 shares | BSE and NSE |
| Sahajanand Medical Technologies Ltd. | 15–19 October 2026 | 23 October 2026 | ₹327–344 | ₹475 crore | 43 shares | BSE and NSE |
| Zetwerk Manufacturing Business Ltd. | 15–19 October 2026 | 23 October 2026 | ₹143–151 | ₹5,012 crore | 99 shares | BSE and NSE |
These figures are the calendar’s snapshot accessed on 13 October 2026, not definitive offer documentation. In particular, Bonfiglioli’s terms are inconsistent across captured secondary listings: India IPO shows a ₹558–584 band and ₹2,534 crore issue size, while Prudent shows ₹558–586 and an issue-size range of ₹2,412.74–2,533.81 crore. Confirm Bonfiglioli’s final RHP or price-band notice for settled terms.
IPO GMP snapshot and what it does—and does not—mean
The India IPO calendar’s entries accessed on 13 October 2026 display these GMP snapshots:
#1 Best Overall
| Issuer | Calendar GMP snapshot |
|---|---|
| Bonfiglioli Transmissions | ₹175 |
| Tonbo Imaging India | ₹390 |
| Sahajanand Medical Technologies | ₹40 |
| Zetwerk Manufacturing Business | ₹22 |
These are reported grey-market premiums, not official IPO prices. They can change quickly and may differ between trackers: a separate India IPO tracker search result reported Tonbo at ₹285 rather than the calendar’s ₹390. The figures should therefore be treated as time-sensitive indications, not a definitive or necessarily comparable market quote.
The tracker describes an estimated price as the issue price plus GMP, but that arithmetic is not the actual listing price. The exchange-set listing price and the listing-day closing price are separate outcomes; a GMP does not guarantee either a particular price or a profit.
Filing status shown on SEBI’s listing
SEBI’s public-issues listing shows a Tonbo Imaging India Limited RHP dated 12 October 2026 and a Sahajanand Medical Technologies Limited RHP dated 10 October 2026. The captured listing does not independently confirm RHP dates for Bonfiglioli or Zetwerk, so no filing date for those companies should be inferred from it.
How to use this comparison
- Use the offer dates, lot size and final price band to understand the application terms; the calendar’s entries are not a substitute for the final offer documents.
- Compare GMP snapshots only with their source and capture date attached. The differing Tonbo figures show why an undated “latest GMP” can mislead.
- Do not rank these IPOs by GMP alone. These figures do not establish company valuations, fundamentals or risk-adjusted investment merit.
The available source material does not include a named statistical study or a suitable attributed quotation about these offers; the numbers here are issuer-specific terms and tracker snapshots, not findings from such a study.
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