Auto
Jamna Auto Industries
A dominant supplier of suspension springs to India’s commercial-vehicle industry.
If an Indian truck rolls off an assembly line, there is a good chance Jamna Auto made part of the suspension underneath it. Leaf springs sound like one of the dullest products on the stock market. That dullness is exactly what makes Jamna interesting. Trucks and buses cannot operate without suspension systems, and Jamna has spent decades becoming a dominant supplier. Its parabolic-spring position is even stronger. The business still moves with the commercial-vehicle cycle, but higher-content products, exports and replacement demand can gradually reduce dependence on new-truck production alone.
The one thing to remember: Market leadership helps Jamna capture the truck cycle; it does not eliminate the cycle.
How the business works
Jamna manufactures leaf springs, parabolic springs, lift axles and related suspension products. OEMs are the core customers, while the aftermarket supplies replacement demand. Parabolic springs are lighter and more efficient than traditional multi-leaf systems, giving the company a premiumisation path.
FY2025-26 snapshot
Revenue
about ₹2,612 crore
Net profit (PAT)
about ₹231 crore
Total income
about ₹2,621 crore
FY26 dividend
₹2.50 per share
Figures are for the financial year 2025-26 as reported by the company. Educational context only.
Where the money comes from
Leaf springs Parabolic springs and suspension systems Aftermarket replacement parts Exports and adjacent products
What could make it much bigger?
Parabolic adoption can raise content per vehicle. Aftermarket expansion can add steadier revenue. Exports and new suspension products diversify the cycle.
What can go wrong
Commercial-vehicle production is cyclical.
Large OEM customers have pricing power.
Steel inflation can pressure margins before pass-through.
5 things to watch
CV production
Parabolic-spring share
Aftermarket growth
Steel-cost pass-through
Operating margin
Ramsam Takeaway
Jamna turns a simple product into an attractive niche through scale, relationships and market share. Structural gains such as parabolic springs and aftermarket growth should be separated from temporary truck-cycle swings. The best years come when both work together.
This profile is educational context only. Ramsam does not rate companies or suggest whether to buy, hold or sell anything.