Sandhi (संधि) — Study Notes

Overview

Sandhi (संधि) is the fusion or euphonic combination of two adjacent sounds — vowels or consonants — when two words or morphemes come together in continuous speech or writing. The term literally means "joining" or "combination." In Hindi grammar, sandhi transforms the sounds at word boundaries to make pronunciation smoother and more natural.

For the UP Police Constable exam, sandhi questions typically ask you to identify the correct sandhi form, break a combined word into its components (विग्रह), or classify the type of sandhi. These questions test both your understanding of phonetic rules and your ability to apply them quickly. Mastery of sandhi rules helps in vocabulary building, comprehension, and error spotting in Hindi passages.

There are three main types of sandhi based on the sounds involved: **Swar Sandhi** (स्वर संधि — vowel + vowel), **Vyanjan Sandhi** (व्यंजन संधि — consonant interactions), and **Visarg Sandhi** (विसर्ग संधि — involving the visarga ः). Each type follows specific phonetic rules derived from Sanskrit grammar, which Hindi has inherited. Understanding these patterns will help you solve 3–5 direct questions on sandhi in the General Hindi section.

Key Concepts

• **Sandhi Definition**: The phonetic modification that occurs when two sounds meet at the junction of two words or word parts. The resulting combined form is the **sandhi roop** (संधि रूप), and separating it back is **sandhi vichchhed** (संधि विच्छेद) or **vigrah** (विग्रह).

• **Swar Sandhi (स्वर संधि)**: Occurs when a vowel at the end of one word meets a vowel at the beginning of the next. Five subtypes: Deergh (दीर्घ), Guna (गुण), Vriddhi (वृद्धि), Yan (यण), and Ayadi (अयादि).

• **Vyanjan Sandhi (व्यंजन संधि)**: Happens when a consonant at the end of one word meets a vowel or consonant at the start of the next, or when certain consonant clusters form. Rules involve doubling, substitution, or insertion of sounds.

• **Visarg Sandhi (विसर्ग संधि)**: The visarga (ः) symbol undergoes transformation based on the following sound — it may become 'स', 'र', 'ओ', or disappear entirely. Context and the nature of the following consonant or vowel determine the change.

• **Sandhi Purpose**: Sandhi ensures smooth pronunciation (euphony) and reflects the natural flow of spoken language. It is not arbitrary but follows systematic phonetic principles.

• **Exam Strategy**: Learn the core subtypes and their signature examples. Practice vigrah (breaking sandhi forms) and sandhi formation (combining words). Most questions give you a combined word and ask which type of sandhi it is, or ask you to identify the correct components.

Formulas / Key Facts

### Swar Sandhi (स्वर संधि) — Five Subtypes

1. **Deergh Sandhi (दीर्घ संधि)**: Similar short vowels combine to form the corresponding long vowel. अ/आ + अ/आ = आ | इ/ई + इ/ई = ई | उ/ऊ + उ/ऊ = ऊ Example: विद्या + आलय = विद्यालय; रवि + इंद्र = रवींद्र

2. **Guna Sandhi (गुण संधि)**: अ/आ combines with इ/ई to give ए; with उ/ऊ to give ओ; with ऋ to give अर्. अ/आ + इ/ई = ए | अ/आ + उ/ऊ = ओ | अ/आ + ऋ = अर् Example: महा + इंद्र = महेंद्र; महा + उत्सव = महोत्सव

3. **Vriddhi Sandhi (वृद्धि संधि)**: अ/आ combines with ए/ऐ to give ऐ; with ओ/औ to give औ. अ/आ + ए/ऐ = ऐ | अ/आ + ओ/औ = औ Example: एक + एक = एकैक; महा + औषधि = महौषधि

4. **Yan Sandhi (यण संधि)**: इ/ई becomes य्; उ/ऊ becomes व्; ऋ becomes र् when followed by a dissimilar vowel. इ/ई + vowel = य् | उ/ऊ + vowel = व् | ऋ + vowel = र् Example: इति + आदि = इत्यादि; सु + आगत = स्वागत

5. **Ayadi Sandhi (अयादि संधि)**: ए, ओ, ऐ, औ at word-end change to अय्, अव्, आय्, आव् respectively before a vowel. ए → अय् | ओ → अव् | ऐ → आय् | औ → आव् Example: ने + अन = नयन; पौ + अन = पावन

### Vyanjan Sandhi (व्यंजन संधि) — Key Rules

• When त् or द् is followed by a vowel or voiced consonant, it may change: त् + च/छ = च्च; त् + ज/झ = ज्ज.

Example: सत् + चरित्र = सच्चरित्र; उत् + ज्वल = उज्ज्वल

• त् or द् followed by श becomes च्छ; followed by ह becomes द्ध.

Example: उत् + श्वास = उच्छ्वास; तत् + हित = तद्धित

• म् before a consonant often becomes अनुस्वार (ं).

Example: सम् + तोष = संतोष; सम् + रक्षण = संरक्षण

• Doubling of consonants: When certain consonants meet, the second may double.

Example: उत् + नत = उन्नत

### Visarg Sandhi (विसर्ग संधि) — Key Transformations

• ः + क/ख/प/फ = no change (visarga remains).

Example: अतः + एव = अतः एव (no sandhi)

• ः + soft consonant (ग, ज, etc.) or vowel = often becomes 'र' or 'ओ'.

Example: मनः + रथ = मनोरथ; निः + रोग = नीरोग

• ः + स = स्स or ः remains.

Example: दुः + साहस = दुस्साहस

• ः + त/थ = often becomes 'स्'.

Example: नमः + ते = नमस्ते

Worked Examples

**Example 1: Identify the sandhi type** Word: हिमालय **Solution**: Vigrah (separation): हिम + आलय Last letter of first word: अ (in हिम) First letter of second word: आ (in आलय) Rule: अ + आ = आ (Deergh Sandhi) **Answer**: Deergh Sandhi (स्वर संधि)

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**Example 2: Perform sandhi** Words: देव + इंद्र **Solution**: Last letter: अ (in देव) First letter: इ (in इंद्र) Rule: अ + इ = ए (Guna Sandhi) Combined form: देव + इंद्र = देवेंद्र **Answer**: देवेंद्र (Guna Sandhi)

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**Example 3: Separate the sandhi word** Word: स्वागत **Solution**: Observe: स्व + आगत doesn't match; try सु + आगत Last letter: उ (in सु) First letter: आ (in आगत) Rule: उ + आ = व् (Yan Sandhi → उ becomes व् before dissimilar vowel) Vigrah: सु + आगत **Answer**: सु + आगत (Yan Sandhi)

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**Example 4: Visarg Sandhi** Word: मनोरथ **Solution**: Vigrah: मनः + रथ Visarga ः + र → ओ (common visarga rule before र) **Answer**: मनः + रथ = मनोरथ (Visarg Sandhi)

Common Mistakes

• **Confusing Guna and Vriddhi**: Students often mix अ + इ = ए (Guna) with अ + ए = ऐ (Vriddhi). Remember: Guna involves short vowels इ, उ, ऋ; Vriddhi involves diphthongs ए, ऐ, ओ, औ.

• **Ignoring Yan Sandhi vowel change**: Many forget that इ/ई → य्, उ/ऊ → व् before a dissimilar vowel. For example, प्रति + एक should become प्रत्येक, not प्रतिएक.

• **Incorrect vigrah of Visarga words**: Students may separate मनोरथ as मनो + रथ instead of मनः + रथ. Always check if a visarga (ः) was present originally — context and word origin help.

• **Assuming all vowel combinations are Deergh**: Not every vowel meeting forms a long vowel. Deergh only applies when same or homogeneous vowels combine (अ+अ, इ+ई, etc.). Dissimilar vowels follow Guna, Vriddhi, or Yan rules.

• **Overlooking Ayadi Sandhi**: Words ending in ए, ओ, ऐ, औ before a vowel form अय्, अव्, आय्, आव्. Students sometimes ignore this rarer rule. Example: ने + अन = नयन, not नेअन.

Quick Reference

• **Deergh Sandhi**: Same vowels → long vowel (अ+अ=आ, इ+ई=ई, उ+ऊ=ऊ). Example: विद्या + आलय = विद्यालय.
• **Guna Sandhi**: अ/आ + इ/ई = ए; अ/आ + उ/ऊ = ओ. Example: महा + इंद्र = महेंद्र.
• **Vriddhi Sandhi**: अ/आ + ए/ऐ = ऐ; अ/आ + ओ/औ = औ. Example: एक + एक = एकैक.
• **Yan Sandhi**: इ/ई → य्, उ/ऊ → व्, ऋ → र् before dissimilar vowel. Example: इति + आदि = इत्यादि.
• **Visarg Sandhi**: ः changes to स्, र्, ओ, or remains based on following sound. Example: मनः + रथ = मनोरथ.
• **Vigrah tip**: Separate combined word by identifying the junction point and applying reverse sandhi rules to restore original forms.