Summary of Key Information:

Reporting Period (Quarter/Year): Quarter ended June 30, 2026 (Q1 FY27)

Nature of Filing / Announcement: Unaudited Financial Results under SEBI Listing Regulations

Date of Board Meeting / Approval: July 24, 2026 (commenced at 11:50 am, concluded at 2:36 pm)

Audit Opinion: Unmodified conclusion by statutory auditors on both standalone and consolidated financial results

Auditor's Comment: Draws attention to ongoing litigation against subsidiary Sterlite Technologies Inc, USA, with potential financial impact currently not determinable

Key Financial Highlights [₹ in Crores]

Consolidated Results:

Revenue from Operations: ₹1,910 (Q1 FY27) vs ₹1,019 (Q1 FY26) - 87% YoY growth | vs ₹1,441 (Q4 FY26) - 33% QoQ growth

Total Income: ₹1,922 (Q1 FY27)

EBITDA: ₹397 (Q1 FY27) vs ₹140 (Q1 FY26) - 184% YoY growth | vs ₹218 (Q4 FY26) - 82% QoQ growth

EBITDA Margin: 20.8% (Q1 FY27) vs 13.7% (Q1 FY26) | vs 15.1% (Q4 FY26)

Net Profit: ₹197 (Q1 FY27) vs ₹10 (Q1 FY26) - 1870% YoY growth | vs ₹59 (Q4 FY26) - 234% QoQ growth

EPS: Basic ₹4.03, Diluted ₹3.71 (Q1 FY27)

Finance Costs: ₹55 (Q1 FY27) vs ₹50 (Q1 FY26) | vs ₹63 (Q4 FY26)

Depreciation and amortization expense: ₹85 (Q1 FY27) vs ₹77 (Q1 FY26) | vs ₹77 (Q4 FY26)

Tax Expense: ₹60 (Q1 FY27) vs ₹3 (Q1 FY26) | vs ₹50 (Q4 FY26)

Standalone Results:

Revenue from Operations: ₹929 (Q1 FY27) vs ₹542 (Q1 FY26) - 71% YoY growth | vs ₹752 (Q4 FY26) - 24% QoQ growth

Total Income: ₹978 (Q1 FY27)

EBITDA: ₹251 (Q1 FY27) vs ₹79 (Q1 FY26) - 218% YoY growth | vs ₹135 (Q4 FY26) - 86% QoQ growth

Net Profit: ₹125 (Q1 FY27) vs ₹2 (Q1 FY26) | vs ₹33 (Q4 FY26) - 279% QoQ growth

EPS: Basic ₹2.56, Diluted ₹2.36 (Q1 FY27)

Other Equity: ₹1,589 (Q1 FY27)

Segment-wise Performance [₹ in Crores]:

Optical networking business:

  • Revenue: ₹1,842 (Q1 FY27) vs ₹961 (Q1 FY26) | vs ₹1,378 (Q4 FY26)
  • Segment Results (EBITDA): ₹401 (Q1 FY27) vs ₹137 (Q1 FY26) | vs ₹202 (Q4 FY26)
  • Segment Assets: ₹5,947 (Q1 FY27) vs ₹4,523 (Q1 FY26) | vs ₹5,399 (Q4 FY26)

Digital and technology solutions:

  • Revenue: ₹72 (Q1 FY27) vs ₹64 (Q1 FY26) | vs ₹69 (Q4 FY26)
  • Segment Results (EBITDA): ₹2 (Q1 FY27) vs ₹1 (Q1 FY26) | vs ₹0 (Q4 FY26)
  • Segment Assets: ₹174 (Q1 FY27) vs ₹146 (Q1 FY26) | vs ₹185 (Q4 FY26)

Corporate Actions:

QIP Issuance: Subsequent to quarter end, allotted 25,728,500 equity shares of face value ₹2 each at issue price of ₹583.01 per share aggregating to ₹1,500 crores

ESOP Allotment: During the quarter, allotted 35,097 equity shares upon exercise of Employee Stock Options

Dividend: Not specified

Other Significant Information:

Order Book: Record open order book of ₹18,618 Cr at quarter end (2.4x increase from FY26)

Key Order Wins:

  • $1.11 billion (₹10,000+ Cr) multi-year contract for optical connectivity products for AI data centers
  • Multiple hyperscaler orders worth $100+ million for Neuralis portfolio
  • Strategic order for long-haul, dark-fibre HD micro-cables

Innovation & IP: 785+ patents filed and granted; 9 new patents filed in Q1 FY27

Net Debt Position: Achieved net debt-free status with net cash balance of ₹483 Cr (includes restricted cash of ~₹391 Cr for legal matter)

Subsidiary Update: STL Digital Limited wrote down deferred tax assets of ₹41 crores during the quarter ended March 31, 2026