Sandhi (संधि) — Study Notes for SSC GD

Overview

Sandhi (संधि) is the phonetic combination of two letters or words when they come together in Hindi and Sanskrit. The term literally means "joining" or "union." When two words are placed adjacent to each other in a sentence, their meeting point undergoes sound changes governed by specific rules. Understanding sandhi is essential for SSC GD Hindi questions on word formation, grammar correction, and sentence structure.

In the SSC GD exam, sandhi appears both directly (identifying the correct sandhi or breaking words into components) and indirectly (in error spotting and sentence correction). You will encounter 1–2 questions requiring you to recognise sandhi patterns, break compound words (विच्छेद), or choose the correct sandhi combination. The three main types—Swar Sandhi (स्वर संधि), Vyanjan Sandhi (व्यंजन संधि), and Visarg Sandhi (विसर्ग संधि)—together form the foundation of classical Hindi word formation.

Mastering basic sandhi rules gives you an advantage in the Hindi grammar section and helps decode unfamiliar compound words. Focus on the most common sandhi patterns rather than memorising every exception. Recognition speed is more valuable than theoretical depth for this competitive exam.

Key Concepts

• **Sandhi definition**: The phonetic transformation that occurs when the last letter of one word meets the first letter of the next word, creating a smooth, unified sound. Example: देव + आलय = देवालय.

• **Vichchhed (विच्छेद)**: The reverse process—breaking a sandhi compound back into its original component words. This is frequently tested: given "महर्षि", identify that it came from "महा + ऋषि".

• **Three main types**: Swar Sandhi (vowel + vowel), Vyanjan Sandhi (consonant-related changes), and Visarg Sandhi (changes involving visarga ः). Each follows distinct transformation rules.

• **Swar Sandhi rules**: When two vowels meet, they may combine into a single long vowel (दीर्घ), form a semi-vowel (यण्), create a vowel blend (गुण/वृद्धि), or merge into अय्/अव् (अयादि).

• **Vyanjan Sandhi principle**: Consonant changes occur based on voicing, aspiration, and the presence of nasal sounds. The most common is the conversion of त्/द् to the following consonant's type.

• **Visarg Sandhi patterns**: The visarga (ः) either disappears, converts to a vowel (ओ/अ), or becomes स्/र् depending on the following sound. Example: मनः + अनुकूल = मनोनुकूल.

• **Exam strategy**: You rarely need to derive sandhi from scratch. Instead, recognise patterns in answer choices and eliminate obviously wrong combinations using vowel-consonant compatibility.

• **Context matters**: In SSC GD, sandhi questions test recognition, not production. Practice identifying which sandhi type was used rather than memorising every sub-rule.

Formulas / Key Facts

**Swar Sandhi (स्वर संधि) — Basic Rules:**

1. **Deergh Sandhi (दीर्घ संधि)**: अ/आ + अ/आ = आ; इ/ई + इ/ई = ई; उ/ऊ + उ/ऊ = ऊ

• Example: विद्या + आलय = विद्यालय

2. **Gun Sandhi (गुण संधि)**: अ/आ + इ/ई = ए; अ/आ + उ/ऊ = ओ; अ/आ + ऋ = अर्

• Example: महा + ईश = महेश

3. **Vriddhi Sandhi (वृद्धि संधि)**: अ/आ + ए/ऐ = ऐ; अ/आ + ओ/औ = औ

• Example: सदा + एव = सदैव

4. **Yan Sandhi (यण् संधि)**: इ/ई + any other vowel = य्; उ/ऊ + any vowel = व्; ऋ + vowel = र्

• Example: इति + आदि = इत्यादि

5. **Ayadi Sandhi (अयादि संधि)**: ए + vowel = अय्; ओ + vowel = अव्; औ + vowel = आव्

• Example: ने + अन = नयन

**Vyanjan Sandhi (व्यंजन संधि) — Key Patterns:**

6. **त्/द् changes**: त् or द् followed by a consonant typically changes to match the following consonant's type

• Example: उत् + हार = उद्धार (त् becomes द् before ह)

7. **Nasal insertion**: A nasal sound (अनुस्वार ं) appears when certain consonants meet

• Example: सम् + सार = संसार

8. **ष्/स् conversion**: Dental स becomes cerebral ष after इ, उ, ऋ or क, र

• Example: अभि + सेक = अभिषेक

**Visarg Sandhi (विसर्ग संधि) — Common Rules:**

9. **Visarga + voiceless consonant**: ः remains or becomes the same consonant doubled

• Example: निः + चय = निश्चय

10. **Visarga + voiced sound**: ः becomes र् or disappears or becomes ओ

• Example: मनः + रथ = मनोरथ

Worked Examples

**Example 1: Identify the correct Sandhi**

Question: "सूर्योदय" is the sandhi of which two words?

Solution:

• Step 1: Observe the compound. We see "सूर्य" clearly and "उदय" at the end.
• Step 2: The joining point is between य and उ → सूर्य + उदय
• Step 3: Check the sandhi type. य् + उ forms व्. However, here we see "यो" suggesting a vowel change.
• Step 4: Actually, this is Yan Sandhi variant. When ए/ओ meets a vowel, it converts: सूर्य + उदय has य् acting as a semi-vowel interface.
• Answer: सूर्य + उदय = सूर्योदय (correct combination with य् + उ interface)

**Example 2: Breaking a sandhi (Vichchhed)**

Question: Break "महर्षि" into its original words.

Solution:

• Step 1: Look at the structure. We see "महर्षि" = महा + something starting with ऋ.
• Step 2: The र् indicates a change from ऋ. In Gun Sandhi, अ/आ + ऋ = अर्.
• Step 3: Reverse the rule: अर् came from आ + ऋ.
• Step 4: The base words are महा (great) + ऋषि (sage).
• Answer: महा + ऋषि = महर्षि

**Example 3: Choose the correct sandhi**

Question: What is the sandhi of "सदा + एव"?

Options: (A) सदएव (B) सदैव (C) सदाव (D) सदाएव

Solution:

• Step 1: Identify vowels: आ (from सदा) + ए (from एव)
• Step 2: Apply Vriddhi Sandhi rule: आ + ए = ऐ
• Step 3: Replace in the compound: सद + ऐ + व = सदैव
• Step 4: Match with options.
• Answer: (B) सदैव

Common Mistakes

1. **Confusing Gun and Vriddhi Sandhi**: Students mix अ + इ = ए (Gun) with अ + ए = ऐ (Vriddhi).

• **Fix**: Remember Gun deals with इ/ई/उ/ऊ/ऋ; Vriddhi deals with ए/ऐ/ओ/औ.

2. **Ignoring vowel length**: Writing हिम + आलय = हिमालय without recognising that आ is absorbed.

• **Fix**: Both short and long versions of the same vowel combine into the long form in Deergh Sandhi.

3. **Misapplying Yan Sandhi direction**: Thinking इ + अ gives इय instead of इ becomes य्, giving य + अ = य.

• **Fix**: The first vowel (इ/ई) transforms into its corresponding semi-vowel (य्), not added to it.

4. **Forgetting Visarg rules**: Assuming ः always disappears or always becomes स्.

• **Fix**: Visarga behaviour depends on the following sound—voiceless consonant, voiced sound, or vowel.

5. **Breaking sandhi incorrectly**: Separating "राजेन्द्र" as राज + ईन्द्र instead of राजा + इन्द्र.

• **Fix**: Use reverse sandhi rules systematically. आ + इ = ए (Gun), so ए breaks back to आ + इ.

Quick Reference

• **Deergh Sandhi**: Same vowel + same vowel = long vowel (अ + अ = आ; इ + इ = ई).
• **Gun Sandhi**: अ/आ + इ/ई = ए; अ/आ + उ/ऊ = ओ; अ/आ + ऋ = अर्.
• **Vriddhi Sandhi**: अ/आ + ए/ऐ = ऐ; अ/आ + ओ/औ = औ.
• **Yan Sandhi**: इ/ई becomes य्; उ/ऊ becomes व्; ऋ becomes र् before another vowel.
• **Visarga becomes ओ**: मनः + रथ = मनोरथ (visarga + voiced = ओ).
• **Practice vichchhed**: Quickly reverse common sandhis like महा + ऋषि = महर्षि; हिम + आलय = हिमालय.