करञ्ज
Millettia pinnata (L.) Panigrahi
Fabaceae · Millettia
One name, more than one plant
Matched live against the GBIF backbone on 28 September 2026 at 99 per cent confidence. Pongamia pinnata and Derris indica are synonyms, and Pongamia is the name most Ayurvedic and most agricultural literature uses. The same tree is now grown widely for biodiesel.
TRADITIONAL VIEW, WITH SAFETY LIMITS
What the texts say Karanja does
What the evidence says. Traditional use is extensive and long recorded. Modern clinical evidence is limited.
Side effects and limits
Avoid or ask first: Internal use without a qualified practitioner.; Pregnancy and breastfeeding.; Children.
A traditional classification, not a recommendation. The full safety record is below.
A Samhita can only be read forwards, from the group to its members. This is the same list read backwards.
AS THE CLASSICAL TEXTS AND THE API PRESCRIBE
| Beeja churna | 1–3 g |
| Twak kwatha | 50–100 ml |
| Anupana | Ushnodaka · Takra |
| Kala | Adhobhakta |
Chiefly external in kushtha; the oil is the usual form and is not for internal use.
Reported from Sharangadhara Samhita and the Ayurvedic Pharmacopoeia of India. Laisha states what the texts prescribe; it does not recommend. No quantity here is adjusted for a particular person — not for agni, koshtha, bala, age, pregnancy, kidney or liver function, or anything already being taken.
| Rasa | KatuTiktaKashaya |
| Guna | LaghuTikshna |
| Virya | Ushna |
| Vipaka | Katu |
| Prabhava | The texts treat karanja as kushthaghna and krimighna and name it with khadira and nimba where the skin is affected. |
| Doshakarma | Kaphavatahara. Being ushna it increases pitta. |
Katu, tikta and kashaya with ushna virya and katu vipaka.
These are the actions the classical texts record. They are statements about what the tradition holds, and this library does not restate them as findings about a human body.
| Upayukta anga | Beeja (the seed) Beeja taila (the seed oil) Mula twak (the root bark) Patra (the leaf) |
| Why it matters | The seed oil is the dravya most used and is applied externally. The oil is bitter and foul-smelling, which is not a fault but the article. |
Naktamala means night-garland, from the dense flowering. Chirabilva records that it grows along water, like bilva.
| English | Indian beech |
| Sinhala | Magul karanda |
| Nepali | Karanj |
| Hindi | Karanj |
| Kannada | Honge |
| Tamil | Pungam |
| Telugu | Kanuga |
| Malayalam | Ungu |
| Marathi | Karanj |
| Gujarati | Karanj |
| Bengali | Karanja |
| Punjabi | Karanj |
| Odia | Karanja |
| Urdu | Karanj |
Rasa, guna, virya, vipaka and karma are recorded as the classical texts give them, with the text and section named so a student can open the book and check. Where an exact chapter and verse could not be confirmed, this library names the section rather than inventing a number.
| Karanja Taila | An oil named for the dravya, used externally. |
| Kaishora Guggulu | Among the dravya of the formulation. |
| Karanjadi Kwatha | Named for the dravya. |
Karanja oil is now a commodity for biodiesel and for soap, and industrial-grade oil — extracted with solvent rather than pressed — is sold where the medicinal grade is meant. Caesalpinia bonduc is called Lata Karanja and Holoptelea integrifolia is called Chirabilva, both of which share paryaya with this tree and are different plants.
Matched live against the GBIF backbone on 28 September 2026 at 99 per cent confidence. Pongamia pinnata and Derris indica are synonyms, and Pongamia is the name most Ayurvedic and most agricultural literature uses. The same tree is now grown widely for biodiesel.
A WAY TO REMEMBER IT
Millettia honours Charles Millett. Pinnata means the leaf is pinnate, in pairs along a stalk.
Karanja is described in the Bhavaprakasha Nighantu and is named among the dravya for the skin. That is what the tradition holds and where it is written down, not a finding about what the oil does in a body.
Constituents. The seed carries flavonoids including karanjin and pongamol, and a fixed oil that is bitter and non-edible.
| Status | Traditional use is extensive and long recorded. Modern clinical evidence is limited. |
| Suggested | Health Canada publishes monographs covering Ayurvedic ingredients and permits specific traditional-use claims, which reflects a regulator accepting a documented tradition rather than a body of clinical trial evidence. |
| Not established | There is not enough good clinical evidence to establish an effect on any named health condition. Long traditional use is not a substitute for that evidence, and this library does not present it as one. |
| The honest gap | Published work mostly concerns the oil as a fuel or a pesticide rather than as the tradition uses it. |
The oil is used externally and that is how the tradition uses it. It is not an edible oil and should not be treated as one — it is bitter, it is used as a pesticide, and karanjin is toxic to fish and insects. Taken internally without direction it causes vomiting and digestive upset, and poisoning from the seed is recorded. Solvent-extracted industrial oil is a different article from cold-pressed and is not intended for the body. Anyone on medication, pregnant, or managing a diagnosed condition should speak to a doctor or a qualified practitioner first.
| Side effects | Skin irritation on external use in some people Nausea and vomiting if swallowed |
| Contraindications | Internal use without a qualified practitioner. Pregnancy and breastfeeding. Children. |
| Interactions | No specific interaction is documented here. Anyone on regular medication should still tell their doctor what they are taking. |
| Pregnancy and breastfeeding | Not to be used in pregnancy or breastfeeding. |
| Climate | Tropical; common along watercourses and planted as an avenue tree. |
| Soil | Wide range including saline and waterlogged ground. A legume, so it fixes nitrogen. |
| Planting | A tree, raised from seed. Now planted at scale for biodiesel. |
| Harvest | Pods collected when ripe and the seed pressed for oil. |
| What is not stated | This library has not verified region-specific spacing, variety and yield figures against a named agricultural authority for every growing country, and does not state them rather than guessing. |