Shankar-6 is a medium-long staple hybrid from Gujarat, while MCU-5 is a longer staple variety grown mainly in south India. The practical difference for a buyer is the yarn count each supports: Shankar-6 is the workhorse for 20s to 40s, and MCU-5 is usually chosen when the mill needs to spin finer or stronger yarn than Shankar-6 can comfortably deliver. Price, availability and the region you are buying from follow from that. Both are upland cotton types, so the difference is one of degree rather than kind, and a lab report shows it clearly.
The two varieties
Shankar-6 comes from the Saurashtra and Kutch belt of Gujarat and is the largest single cotton type traded in India. Staple is usually 28 to 30 mm with medium micronaire. Its strengths are volume, consistency and a trade that knows it well, with bales moving easily to the ports at Mundra, Kandla (Deendayal) and Pipavav.
MCU-5 is an older variety associated with the southern growing states, typically with a longer staple than Shankar-6, often in the low 30s of millimetres. It is used for combed yarns in finer counts, and historically for shirting and finer knits. The crop is smaller than Shankar-6, so supply is thinner and more seasonal, and the name is sometimes used loosely in the trade for cotton of that staple class rather than the exact variety.
Side by side
- Staple: Shankar-6 around 28 to 30 mm; MCU-5 usually longer, typically above 30 mm.
- Typical counts: Shankar-6 for 20s to 40s; MCU-5 for 40s and finer.
- Region: Shankar-6 from Gujarat; MCU-5 from south India.
- Volume: Shankar-6 is abundant; MCU-5 is a smaller, more regional crop.
- Price: longer staple carries a premium, so MCU-5 is usually dearer per candy.
- Spinning: Shankar-6 is common in carded and combed yarns; MCU-5 is mostly combed.
Choosing between them
Start from the yarn, not the cotton. If your fabric runs on 30s combed or coarser, Shankar-6 will usually do the job at lower cost and with easier supply. If you need 50s or 60s, or a high-strength sewing thread, a longer staple such as MCU-5 or an extra-long variety makes sense. Mills sometimes blend the two to reach a target count at a lower cost, so ask what is actually in the mix.
Be careful with the names. Variety labels in the Indian trade are often used as shorthand for a staple class, and a bale sold as MCU-5 may be a similar variety from the same region. The test report, not the label, is what you should be paying for. If a supplier offers MCU-5 at a price close to Shankar-6, treat that as a signal to check the staple and strength carefully, since a genuine longer staple usually costs more.
What we do
We visit ginners in Gujarat and spinners who buy from both regions, and we test sealed samples at an NABL-accredited lab so the variety claim is backed by numbers. We book the season with one approved supplier and one backup, supervise loading and send you weekly updates. If you are unsure which staple your yarn needs, we offer a free 20-minute sourcing review.