The Indian primary market is set for a busy week with five Mainboard IPOs scheduled to open for subscription from August 24, 2026.
The upcoming Mainboard IPO lineup includes Symbiotec Pharmalab, Skyways Air Services, Hy-Tech Engineers, Annu Projects and Lumino Industries. Together, these five IPOs are looking to raise approximately ₹3,350.59 crore from investors.
Among the upcoming issues, Symbiotec Pharmalab IPO is the largest with an issue size of approximately ₹1,757 crore, followed by Lumino Industries IPO at ₹700 crore and Skyways Air Services IPO at ₹582.80 crore.
Mainboard IPOs Next Week – Complete List
| IPO | Open Date | Close Date | Price Band | Issue Size | Latest GMP* |
|---|---|---|---|---|---|
| Symbiotec Pharmalab | Aug 24 | Aug 27 | ₹938–₹988 | ₹1,757 Cr | ₹320 |
| Skyways Air Services | Aug 24 | Aug 27 | ₹131–₹138 | ₹582.80 Cr | ₹40 |
| Hy-Tech Engineers | Aug 24 | Aug 27 | ₹50–₹53 | ₹135.73 Cr | ₹22 |
| Annu Projects | Aug 25 | Aug 28 | ₹94–₹99 | ₹175.06 Cr | ₹0 |
| Lumino Industries | Aug 27 | Aug 31 | ₹78–₹82 | ₹700 Cr | ₹43 |
*GMP is unofficial and can change at any time. Latest figures shown are based on currently available market data.
1. Symbiotec Pharmalab IPO
Symbiotec Pharmalab IPO is the largest Mainboard IPO opening next week, with an issue size of approximately ₹1,757 crore.
The IPO will open on August 24, 2026, and close on August 27, 2026. The price band has been fixed at ₹938 to ₹988 per share.
Key Details
- IPO Open: August 24, 2026
- IPO Close: August 27, 2026
- Price Band: ₹938–₹988
- Issue Size: ₹1,757 crore
- Lot Size: 15 Shares
- Minimum Investment: ₹14,820
- Listing: BSE & NSE
- Expected Listing: September 1, 2026
- Latest GMP: ₹320
The reported GMP of ₹320 represents a substantial premium over the upper price band, although grey-market prices are unofficial and can change before listing.
2. Skyways Air Services IPO
Skyways Air Services IPO will also open on August 24 and is looking to raise approximately ₹582.80 crore.
The IPO has a price band of ₹131 to ₹138 per share and will remain open until August 27.
Key Details
- IPO Open: August 24, 2026
- IPO Close: August 27, 2026
- Price Band: ₹131–₹138
- Issue Size: ₹582.80 crore
- Lot Size: 100 Shares
- Minimum Investment: ₹13,800
- Listing: BSE & NSE
- Expected Listing: September 1, 2026
- Latest GMP: ₹40
Skyways Air Services operates in the logistics and freight-forwarding sector, including air and ocean freight services.
The company has also received institutional attention ahead of the public issue through its anchor-book process.
3. Hy-Tech Engineers IPO
Hy-Tech Engineers IPO is another Mainboard issue opening on August 24.
The company is looking to raise approximately ₹135.73 crore, with the IPO price band fixed at ₹50 to ₹53 per share.
Key Details
- IPO Open: August 24, 2026
- IPO Close: August 27, 2026
- Price Band: ₹50–₹53
- Issue Size: ₹135.73 crore
- Lot Size: 283 Shares
- Minimum Investment: ₹15, - approximately ₹15,000 at the upper band
- Listing: BSE & NSE
- Expected Listing: September 1, 2026
- Latest GMP: ₹22
Hy-Tech Engineers manufactures hydraulic fittings and related products used across industrial applications.
The latest reported GMP has shown positive movement, although GMP should not be treated as a guaranteed listing indicator.
4. Annu Projects IPO
Annu Projects IPO will open on August 25, 2026, making it the fourth Mainboard IPO to enter the market next week.
The company plans to raise approximately ₹175.06 crore, with a price band of ₹94 to ₹99 per share.
Key Details
- IPO Open: August 25, 2026
- IPO Close: August 28, 2026
- Price Band: ₹94–₹99
- Issue Size: ₹175.06 crore
- Lot Size: 151 Shares
- Minimum Investment: ₹14,949
- Listing: BSE & NSE
- Expected Listing: September 2, 2026
- Latest GMP: ₹0
Annu Projects operates in the engineering and construction infrastructure segment.
At the time of writing, the reported GMP is around ₹0, indicating no premium in the unofficial grey market.
5. Lumino Industries IPO
Lumino Industries IPO will open on August 27, 2026, making it the final Mainboard IPO scheduled to open during the week.
The company has fixed a price band of ₹78 to ₹82 per share and is looking to raise approximately ₹700 crore.
Key Details
- IPO Open: August 27, 2026
- IPO Close: August 31, 2026
- Price Band: ₹78–₹82
- Issue Size: ₹700 crore
- Lot Size: 182 Shares
- Minimum Investment: ₹14,924
- Listing: BSE & NSE
- Expected Listing: September 3, 2026
- Latest GMP: ₹43
Lumino Industries is active in the electrical and power-transmission ecosystem, with products including conductors, power cables and electrical wires.
The IPO's ₹700 crore size makes it one of the biggest Mainboard issues in the upcoming calendar.
Mainboard IPO Opening Schedule
Investors will see three Mainboard IPOs open simultaneously on Monday, followed by one on Tuesday and another on Thursday.
| Date | Mainboard IPOs Opening |
| August 24 | Symbiotec Pharmalab, Skyways Air Services, Hy-Tech Engineers |
| August 25 | Annu Projects |
| August 27 | Lumino Industries |
This means August 24 will be the busiest day, with three Mainboard IPOs opening together.
Which Mainboard IPO Has the Highest GMP?
Based on the latest available GMP data, Symbiotec Pharmalab IPO currently has the highest absolute GMP at around ₹320, followed by Lumino Industries at ₹43, Skyways Air Services at ₹40 and Hy-Tech Engineers at ₹22. Annu Projects is currently around ₹0.
GMP Comparison
| IPO | Price Band | GMP | Approx. GMP % |
| Symbiotec Pharmalab | ₹988 | ₹320 | ~32.39% |
| Skyways Air Services | ₹138 | ₹40 | ~28.99% |
| Lumino Industries | ₹82 | ₹43 | ~52.44% |
| Hy-Tech Engineers | ₹53 | ₹22 | ~41.51% |
| Annu Projects | ₹99 | ₹0 | 0% |
Important: GMP percentages are calculated using the upper end of the price band and are only indicative. GMP is an unofficial market indicator and does not guarantee listing gains.
Mainboard IPOs – Total Issue Size
The five upcoming Mainboard IPOs are collectively targeting approximately ₹3,350.59 crore.
- Symbiotec Pharmalab — ₹1,757 crore
- Skyways Air Services — ₹582.80 crore
- Hy-Tech Engineers — ₹135.73 crore
- Annu Projects — ₹175.06 crore
- Lumino Industries — ₹700 crore
Total: Approximately ₹3,350.59 crore
What Should Investors Check?
With multiple IPOs opening at the same time, investors may want to compare each issue rather than applying solely because of a high GMP.
Key factors to consider include:
- Company financial performance
- IPO valuation
- Price-to-earnings ratio
- Revenue and profit growth
- Debt levels
- Promoter holding
- Fresh issue versus offer for sale
- Purpose of IPO proceeds
- Industry outlook
- Lot size and minimum investment
- Subscription demand
- GMP trend
Mainboard IPOs Next Week – Which One Should You Watch?
The upcoming week offers a diverse mix of businesses, ranging from pharmaceuticals and logistics to engineering, infrastructure and electrical products.
Symbiotec Pharmalab stands out because of its ₹1,757 crore issue size and currently reported high GMP. Skyways Air Services combines a sizeable issue with logistics-sector exposure, while Lumino Industries is another large ₹700 crore issue entering the market later in the week.
Hy-Tech Engineers and Annu Projects are smaller Mainboard issues and may attract investors looking for relatively lower issue sizes.
However, GMP alone should not determine an IPO investment decision.
Mainboard IPOs Next Week – Quick Summary
5 Mainboard IPOs are scheduled to open next week, with a combined issue size of approximately ₹3,350.59 crore.
The IPO calendar will be particularly active on August 24, when Symbiotec Pharmalab, Skyways Air Services and Hy-Tech Engineers open simultaneously.
Investors should monitor the latest GMP, subscription numbers, anchor-book participation and valuation as the IPOs open.
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