India’s defence sector has emerged as one of the stock market’s strongest performers in 2026. Even as the broader market has struggled, defence stocks have attracted investor interest. The Nifty Defence Index has gained over 21.9% so far this year, significantly outperforming the Nifty 50, which has fallen over 8%. This makes defence the best-performing segment among the 11 Nifty sectoral indices, based on 27 July 2026 closing values.Are defence stocks simply benefiting from a market theme, or is the rally supported by lasting structural changes in the industry? Most analysts believe the sector is in a multi-year growth cycle supported by government spending, accelerating indigenisation, rising procurement activity, and a growing export opportunity.Brokerage houses remain constructive on the sector. Recent reports by Kotak Securities, Nuvama and 360 One Capital point to a strong growth runway driven by rising defence budgets.One of the key indicators supporting the investment case is the sharp rise in Acceptance of Necessity (AoN) approvals. AoN is the government’s go-ahead for the armed forces to acquire equipment; it’s the first formal step in India’s defence procurement process. Kotak Securities notes that AoN approvals increased tenfold between FY2020-21 and FY2025-26. The brokerage believes heightened geopolitical tensions, ongoing military modernisation and expanding export opportunities will support order inflows for many years.Before you continue readingHow financially free are you?Most people overestimate their financial freedom. Discover your Financial Freedom score through a quick surveyNuvama argues that the industry is now moving into its next phase of development. The initial focus was on building domestic manufacturing capabilities and reducing import dependence. The next phase is expected to be characterised by large-scale deployment of advanced indigenous systems across the armed forces. The outlook got another lift recently when the Defence Acquisition Council cleared AoN proposals worth Rs.52,000 crore.According to 360 One Capital, the sustained increase in procurement approvals over the past few years points to a healthy pipeline of contracts. The strength of the sector’s order books is one of its biggest attractions. Large order backlogs provide companies with long-term revenue visibility and reduce business uncertainty.Amit Anwani, Research Analyst at PL Capital, estimates that the sector can deliver revenue growth of 15-20% annually over the medium term. He expects earnings growth to exceed revenue growth as companies benefit from operating leverage, higher localisation and a more favourable product mix.Growth opportunities are spread across several segments. Sorbh Gupta, Head–Equity at Bajaj Asset Management, believes changing warfare patterns and the increasing use of cost-effective weapon systems are reshaping defence strategies worldwide. As a result, segments such as drones, counter-drone systems, electronic warfare solutions and artificial intelligence- enabled defence technologies are expected to see significant growth. Anwani identifies missiles and precision-guided munitions, naval shipbuilding, aerospace manufacturing, and maintenance, repair and overhaul (MRO) services as segments that could benefit from sustained demand.