diff --git a/README.md b/README.md
index 5a64916..cc35cdd 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ As a voice interaction entry, the XiaoZhi AI chatbot leverages the AI capabiliti
 - Speaker recognition, identifies the current speaker [3D Speaker](https://github.com/modelscope/3D-Speaker)
 - OLED / LCD displays with emoji and rich expression support, plus camera vision input on supported boards
 - Battery display and power management
-- 38 interface languages, with localized voice prompts where available and English fallback
+- 39 interface languages, with localized voice prompts where available and English fallback
 - ESP32, ESP32-C3, ESP32-C5, ESP32-C6, ESP32-S3, and ESP32-P4 chip platforms
 - Wi-Fi provisioning through hotspot or BluFi
 - Device-side MCP for device control (Speaker, LED, Servo, GPIO, etc.)
diff --git a/main/CMakeLists.txt b/main/CMakeLists.txt
index 0af71cd..ffb8d0a 100644
--- a/main/CMakeLists.txt
+++ b/main/CMakeLists.txt
@@ -923,6 +923,8 @@ elseif(CONFIG_LANGUAGE_AR_SA)
     set(LANG_DIR "ar-SA")
 elseif(CONFIG_LANGUAGE_HI_IN)
     set(LANG_DIR "hi-IN")
+elseif(CONFIG_LANGUAGE_MR_IN)
+    set(LANG_DIR "mr-IN")
 elseif(CONFIG_LANGUAGE_PT_PT)
     set(LANG_DIR "pt-PT")
 elseif(CONFIG_LANGUAGE_PL_PL)
diff --git a/main/Kconfig.projbuild b/main/Kconfig.projbuild
index dad6f00..c0de794 100644
--- a/main/Kconfig.projbuild
+++ b/main/Kconfig.projbuild
@@ -67,6 +67,8 @@ choice
         bool "Arabic"
     config LANGUAGE_HI_IN
         bool "Hindi"
+    config LANGUAGE_MR_IN
+        bool "Marathi"
     config LANGUAGE_PT_PT
         bool "Portuguese"
     config LANGUAGE_PL_PL
diff --git a/main/assets/locales/mr-IN/0.ogg b/main/assets/locales/mr-IN/0.ogg
new file mode 100644
index 0000000..73ba704
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diff --git a/main/assets/locales/mr-IN/1.ogg b/main/assets/locales/mr-IN/1.ogg
new file mode 100644
index 0000000..9891cb3
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diff --git a/main/assets/locales/mr-IN/2.ogg b/main/assets/locales/mr-IN/2.ogg
new file mode 100644
index 0000000..977707a
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diff --git a/main/assets/locales/mr-IN/3.ogg b/main/assets/locales/mr-IN/3.ogg
new file mode 100644
index 0000000..3c9d3db
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diff --git a/main/assets/locales/mr-IN/4.ogg b/main/assets/locales/mr-IN/4.ogg
new file mode 100644
index 0000000..1685d91
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diff --git a/main/assets/locales/mr-IN/5.ogg b/main/assets/locales/mr-IN/5.ogg
new file mode 100644
index 0000000..a79f58d
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diff --git a/main/assets/locales/mr-IN/6.ogg b/main/assets/locales/mr-IN/6.ogg
new file mode 100644
index 0000000..184b5c6
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diff --git a/main/assets/locales/mr-IN/7.ogg b/main/assets/locales/mr-IN/7.ogg
new file mode 100644
index 0000000..edb15c7
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diff --git a/main/assets/locales/mr-IN/8.ogg b/main/assets/locales/mr-IN/8.ogg
new file mode 100644
index 0000000..18b9a78
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diff --git a/main/assets/locales/mr-IN/9.ogg b/main/assets/locales/mr-IN/9.ogg
new file mode 100644
index 0000000..0183e82
Binary files /dev/null and b/main/assets/locales/mr-IN/9.ogg differ
diff --git a/main/assets/locales/mr-IN/activation.ogg b/main/assets/locales/mr-IN/activation.ogg
new file mode 100644
index 0000000..88c2bfe
Binary files /dev/null and b/main/assets/locales/mr-IN/activation.ogg differ
diff --git a/main/assets/locales/mr-IN/err_pin.ogg b/main/assets/locales/mr-IN/err_pin.ogg
new file mode 100644
index 0000000..bda1b36
Binary files /dev/null and b/main/assets/locales/mr-IN/err_pin.ogg differ
diff --git a/main/assets/locales/mr-IN/err_reg.ogg b/main/assets/locales/mr-IN/err_reg.ogg
new file mode 100644
index 0000000..bc77546
Binary files /dev/null and b/main/assets/locales/mr-IN/err_reg.ogg differ
diff --git a/main/assets/locales/mr-IN/language.json b/main/assets/locales/mr-IN/language.json
new file mode 100644
index 0000000..2790bd8
--- /dev/null
+++ b/main/assets/locales/mr-IN/language.json
@@ -0,0 +1,59 @@
+{
+    "language": {
+        "type": "mr-IN"
+    },
+    "strings": {
+        "WARNING": "चेतावणी",
+        "INFO": "माहिती",
+        "ERROR": "त्रुटी",
+        "VERSION": "आवृत्ती ",
+        "LOADING_PROTOCOL": "लॉगिन होत आहे...",
+        "INITIALIZING": "सुरू होत आहे...",
+        "PIN_ERROR": "कृपया सिम कार्ड घाला",
+        "REG_ERROR": "नेटवर्कशी कनेक्ट होऊ शकत नाही, कृपया सिम कार्डची स्थिती तपासा",
+        "MODEM_INIT_ERROR": "मोडेम सुरू करण्यात अयशस्वी",
+        "DETECTING_MODULE": "मॉड्यूल शोधत आहे...",
+        "FLIGHT_MODE_ON": "फ्लाइट मोड सुरू आहे",
+        "FLIGHT_MODE_OFF": "फ्लाइट मोड बंद आहे",
+        "REGISTERING_NETWORK": "नेटवर्कची प्रतीक्षा करत आहे...",
+        "CHECKING_NEW_VERSION": "नवीन आवृत्ती तपासत आहे...",
+        "CHECK_NEW_VERSION_FAILED": "नवीन आवृत्ती तपासण्यात अयशस्वी, %d सेकंदात पुन्हा प्रयत्न करेल: %s",
+        "SWITCH_TO_WIFI_NETWORK": "Wi-Fi वर स्विच करत आहे...",
+        "SWITCH_TO_4G_NETWORK": "4G वर स्विच करत आहे...",
+        "STANDBY": "स्टँडबाय",
+        "CONNECT_TO": "कनेक्ट करा ",
+        "CONNECTING": "कनेक्ट होत आहे...",
+        "CONNECTION_SUCCESSFUL": "कनेक्शन यशस्वी",
+        "CONNECTED_TO": "याच्याशी कनेक्ट झाले ",
+        "LISTENING": "ऐकत आहे...",
+        "SPEAKING": "बोलत आहे...",
+        "SERVER_NOT_FOUND": "उपलब्ध सेवा शोधत आहे",
+        "SERVER_NOT_CONNECTED": "सेवेशी कनेक्ट होऊ शकत नाही, कृपया नंतर पुन्हा प्रयत्न करा",
+        "SERVER_TIMEOUT": "प्रतिसादाची प्रतीक्षा वेळ संपली",
+        "SERVER_ERROR": "पाठवण्यात अयशस्वी, कृपया नेटवर्क तपासा",
+        "CONNECT_TO_HOTSPOT": "हॉटस्पॉट: ",
+        "ACCESS_VIA_BROWSER": " कॉन्फिग URL: ",
+        "WIFI_CONFIG_MODE": "Wi-Fi कॉन्फिगरेशन मोड",
+        "ENTERING_WIFI_CONFIG_MODE": "Wi-Fi कॉन्फिगरेशन मोडमध्ये प्रवेश करत आहे...",
+        "SCANNING_WIFI": "Wi-Fi स्कॅन करत आहे...",
+        "NEW_VERSION": "नवीन आवृत्ती ",
+        "OTA_UPGRADE": "OTA अपग्रेड",
+        "UPGRADING": "सिस्टम अपग्रेड होत आहे...",
+        "UPGRADE_FAILED": "अपग्रेड अयशस्वी",
+        "ACTIVATION": "सक्रियकरण",
+        "BATTERY_LOW": "बॅटरी कमी आहे",
+        "BATTERY_CHARGING": "चार्ज होत आहे",
+        "BATTERY_FULL": "बॅटरी पूर्ण चार्ज",
+        "BATTERY_NEED_CHARGE": "बॅटरी कमी आहे, कृपया चार्ज करा",
+        "VOLUME": "आवाज ",
+        "MUTED": "म्यूट",
+        "MAX_VOLUME": "कमाल आवाज",
+        "RTC_MODE_OFF": "AEC बंद",
+        "RTC_MODE_ON": "AEC सुरू",
+        "PLEASE_WAIT": "कृपया प्रतीक्षा करा...",
+        "FOUND_NEW_ASSETS": "नवीन संसाधने सापडली: %s",
+        "DOWNLOAD_ASSETS_FAILED": "संसाधने डाउनलोड करण्यात अयशस्वी",
+        "LOADING_ASSETS": "संसाधने लोड होत आहेत...",
+        "HELLO_MY_FRIEND": "नमस्कार, माझ्या मित्रा!"
+    }
+}
diff --git a/main/assets/locales/mr-IN/upgrade.ogg b/main/assets/locales/mr-IN/upgrade.ogg
new file mode 100644
index 0000000..d2be7e7
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diff --git a/main/assets/locales/mr-IN/welcome.ogg b/main/assets/locales/mr-IN/welcome.ogg
new file mode 100644
index 0000000..b571d96
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diff --git a/main/assets/locales/mr-IN/wificonfig.ogg b/main/assets/locales/mr-IN/wificonfig.ogg
new file mode 100644
index 0000000..c52d60e
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