diff --git a/dlls/usp10/shape.c b/dlls/usp10/shape.c
index dd02c14f208..731e55166e8 100644
--- a/dlls/usp10/shape.c
+++ b/dlls/usp10/shape.c
@@ -422,7 +422,6 @@ static OPENTYPE_FEATURE_RECORD devanagari_features[] =
     /* Base forms */
     { MS_MAKE_TAG('r','p','h','f'), 1},
     { MS_MAKE_TAG('b','l','w','f'), 1},
-    { MS_MAKE_TAG('h','a','l','f'), 1},
     { MS_MAKE_TAG('v','a','t','u'), 1},
     { MS_MAKE_TAG('c','j','c','t'), 1},
     /* Presentation forms */
@@ -457,7 +456,6 @@ static OPENTYPE_FEATURE_RECORD bengali_features[] =
     { MS_MAKE_TAG('r','p','h','f'), 1},
     { MS_MAKE_TAG('b','l','w','f'), 1},
     { MS_MAKE_TAG('p','s','t','f'), 1},
-    { MS_MAKE_TAG('h','a','l','f'), 1},
     { MS_MAKE_TAG('v','a','t','u'), 1},
     { MS_MAKE_TAG('c','j','c','t'), 1},
     /* Presentation forms */
@@ -494,7 +492,6 @@ static OPENTYPE_FEATURE_RECORD gurmukhi_features[] =
     { MS_MAKE_TAG('r','p','h','f'), 1},
     { MS_MAKE_TAG('b','l','w','f'), 1},
     { MS_MAKE_TAG('p','s','t','f'), 1},
-    { MS_MAKE_TAG('h','a','l','f'), 1},
     { MS_MAKE_TAG('v','a','t','u'), 1},
     { MS_MAKE_TAG('c','j','c','t'), 1},
     /* Presentation forms */
@@ -560,7 +557,6 @@ static OPENTYPE_FEATURE_RECORD tamil_features[] =
     /* Base forms */
     { MS_MAKE_TAG('r','p','h','f'), 1},
     { MS_MAKE_TAG('p','r','e','f'), 1},
-    { MS_MAKE_TAG('h','a','l','f'), 1},
     /* Presentation forms */
     { MS_MAKE_TAG('p','r','e','s'), 1},
     { MS_MAKE_TAG('a','b','v','s'), 1},
@@ -595,7 +591,6 @@ static OPENTYPE_FEATURE_RECORD telugu_features[] =
     { MS_MAKE_TAG('p','r','e','f'), 1},
     { MS_MAKE_TAG('b','l','w','f'), 1},
     { MS_MAKE_TAG('p','s','t','f'), 1},
-    { MS_MAKE_TAG('h','a','l','f'), 1},
     { MS_MAKE_TAG('c','j','c','t'), 1},
     /* Presentation forms */
     { MS_MAKE_TAG('p','r','e','s'), 1},
@@ -642,25 +637,25 @@ static const ScriptShapeData ShapingData[] =
     {{ thai_features, 1}, NULL, "thai", "", NULL, ShapeCharGlyphProp_Thai},
     {{ thai_features, 1}, required_lao_features, "lao", "", NULL, ShapeCharGlyphProp_Thai},
     {{ thai_features, 1}, required_lao_features, "lao", "", NULL, ShapeCharGlyphProp_Thai},
-    {{ devanagari_features, 11}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari},
-    {{ devanagari_features, 11}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari},
-    {{ bengali_features, 12}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali},
-    {{ bengali_features, 12}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali},
-    {{ gurmukhi_features, 12}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi},
-    {{ gurmukhi_features, 12}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi},
-    {{ devanagari_features, 11}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
-    {{ devanagari_features, 11}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
-    {{ devanagari_features, 11}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
+    {{ devanagari_features, 10}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari},
+    {{ devanagari_features, 10}, required_devanagari_features, "deva", "dev2", ContextualShape_Devanagari, ShapeCharGlyphProp_Devanagari},
+    {{ bengali_features, 11}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali},
+    {{ bengali_features, 11}, required_bengali_features, "beng", "bng2", ContextualShape_Bengali, ShapeCharGlyphProp_Bengali},
+    {{ gurmukhi_features, 11}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi},
+    {{ gurmukhi_features, 11}, required_gurmukhi_features, "guru", "gur2", ContextualShape_Gurmukhi, ShapeCharGlyphProp_Gurmukhi},
+    {{ devanagari_features, 10}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
+    {{ devanagari_features, 10}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
+    {{ devanagari_features, 10}, required_devanagari_features, "gujr", "gjr2", ContextualShape_Gujarati, ShapeCharGlyphProp_Gujarati},
     {{ oriya_features, 10}, required_oriya_features, "orya", "ory2", ContextualShape_Oriya, ShapeCharGlyphProp_Oriya},
     {{ oriya_features, 10}, required_oriya_features, "orya", "ory2", ContextualShape_Oriya, ShapeCharGlyphProp_Oriya},
-    {{ tamil_features, 9}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil},
-    {{ tamil_features, 9}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil},
-    {{ telugu_features, 12}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu},
-    {{ telugu_features, 12}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu},
-    {{ telugu_features, 12}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada},
-    {{ telugu_features, 12}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada},
-    {{ telugu_features, 12}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam},
-    {{ telugu_features, 12}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam},
+    {{ tamil_features, 8}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil},
+    {{ tamil_features, 8}, required_tamil_features, "taml", "tam2", ContextualShape_Tamil, ShapeCharGlyphProp_Tamil},
+    {{ telugu_features, 11}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu},
+    {{ telugu_features, 11}, required_telugu_features, "telu", "tel2", ContextualShape_Telugu, ShapeCharGlyphProp_Telugu},
+    {{ telugu_features, 11}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada},
+    {{ telugu_features, 11}, required_telugu_features, "knda", "knd2", ContextualShape_Kannada, ShapeCharGlyphProp_Kannada},
+    {{ telugu_features, 11}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam},
+    {{ telugu_features, 11}, required_telugu_features, "mlym", "mlm2", ContextualShape_Malayalam, ShapeCharGlyphProp_Malayalam},
 };
 
 static INT GSUB_is_glyph_covered(LPCVOID table , UINT glyph)
@@ -2030,6 +2025,42 @@ static void Apply_Indic_BasicForm(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *ps
     }
 }
 
+static inline INT find_consonant_halant(WCHAR* pwChars, INT index, INT end, lexical_function lexical)
+{
+    int i = 0;
+    while (i + index < end - 1 && !(lexical(pwChars[index+i]) == lex_Consonant && (lexical(pwChars[index+i+1]) == lex_Halant || (index + i < end - 2 && lexical(pwChars[index+i+1]) == lex_Nukta && lexical(pwChars[index+i+2] == lex_Halant)))))
+        i++;
+    if (index + i <= end-1)
+        return index + i;
+    else
+        return -1;
+}
+
+static void Apply_Indic_Half(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwChars, INT cChars, IndicSyllable *syllable, WORD *pwOutGlyphs, INT* pcGlyphs, WORD *pwLogClust, lexical_function lexical, IndicSyllable *glyph_index)
+{
+    INT index, nextIndex;
+    INT count,g_offset;
+    INT prevCount = *pcGlyphs;
+
+    count = syllable->base - syllable->start;
+
+    g_offset = 0;
+    index = find_consonant_halant(&pwChars[syllable->start], 0, count, lexical);
+    while (index >= 0 && index < (glyph_index->base - glyph_index->start))
+    {
+        nextIndex = apply_GSUB_feature_to_glyph(hdc, psa, psc, pwOutGlyphs, index+glyph_index->start+g_offset, 1, pcGlyphs, "half");
+        if (nextIndex > GSUB_E_NOGLYPH)
+        {
+            UpdateClusters(nextIndex, *pcGlyphs - prevCount, 1, cChars, pwLogClust);
+            g_offset += (*pcGlyphs - prevCount);
+            shift_syllable_glyph_indexs(glyph_index, index + glyph_index->start, g_offset);
+        }
+
+        index+=2;
+        index = find_consonant_halant(&pwChars[syllable->start], index, count, lexical);
+    }
+}
+
 static void ShapeIndicSyllables(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa, WCHAR* pwChars, INT cChars, IndicSyllable *syllables, INT syllable_count, WORD *pwOutGlyphs, INT* pcGlyphs, WORD *pwLogClust, lexical_function lexical)
 {
     int c;
@@ -2038,6 +2069,7 @@ static void ShapeIndicSyllables(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa,
     const GSUB_Feature *nukt = load_GSUB_feature(hdc, psa, psc, "nukt");
     const GSUB_Feature *akhn = load_GSUB_feature(hdc, psa, psc, "akhn");
     const GSUB_Feature *rkrf = load_GSUB_feature(hdc, psa, psc, "rkrf");
+    BOOL half = (load_GSUB_feature(hdc, psa, psc, "half") != NULL);
     IndicSyllable glyph_indexs;
 
     for (c = 0; c < syllable_count; c++)
@@ -2067,6 +2099,8 @@ static void ShapeIndicSyllables(HDC hdc, ScriptCache *psc, SCRIPT_ANALYSIS *psa,
             TRACE("applying feature rkrf\n");
             Apply_Indic_BasicForm(hdc, psc, psa, pwChars, cChars, &syllables[c], pwOutGlyphs, pcGlyphs, pwLogClust, lexical, &glyph_indexs, rkrf);
         }
+        if (half)
+            Apply_Indic_Half(hdc, psc, psa, pwChars, cChars, &syllables[c], pwOutGlyphs, pcGlyphs, pwLogClust, lexical, &glyph_indexs);
 
         overall_shift += glyph_indexs.end - old_end;
     }