Add indic-tts skill - Indian TTS for everyone

[ankitjh4]

Summary

Adds comprehensive Indian AI toolkit using Sarvam AI - a Bangalore-based AI company building models specifically for Indian languages.

About Sarvam AI

Sarvam AI is an Indian AI company building foundational models and APIs optimized for Indian languages. They provide state-of-the-art models for speech and text processing in 10+ Indian languages including Hindi, Bengali, Tamil, Telugu, Gujarati, Kannada, Malayalam, Marathi, Punjabi, Odia, and English.

Get API key: https://dashboard.sarvam.ai (free tier available)

Features

1. Text-to-Speech (TTS)

• Model: Bulbul v3
• Languages: 11 Indian languages
• Speakers: 30+ voices (male and female)
• Natural prosody and pronunciation

2. Document Intelligence

• Extract text from PDFs and images (JPEG/PNG)
• 23 supported languages including Hindi, Bengali, Tamil, Telugu, Gujarati, Kannada, Malayalam, Marathi, Punjabi, Odia, Urdu, Assamese, Bodo, Dogri, Kashmiri, Konkani, Maithili, Manipuri, Nepali, Sanskrit, Santali, Sindhi, English
• Output formats: Markdown, HTML, JSON
• Full workflow: create job → upload → process → download results

3. Text Processing

• Chat/Completion (sarvam-m model) - OpenAI-compatible API
• Translation (mayura:v1, sarvam-translate:v1) - 23 Indian languages
• Transliteration - Convert between scripts (e.g., Devanagari ↔ Roman)
• Language Detection - Auto-detect language of input text

4. Speech-to-Text with Translation

Three modes for different use cases:

• REST API - Quick transcription for audio < 30 seconds
• WebSocket - Real-time streaming transcription with 4 output modes (translated text, original transcript, both, or bilingual)
• Batch Processing - Process multiple audio files with speaker diarization for meeting transcription

Scripts

• tts.py - Text-to-speech conversion
• document_intelligence.py - PDF/image OCR extraction
• text_processing.py - Chat, translation, transliteration, language detection
• speech_to_text.py - STT via REST, WebSocket, or Batch

Setup

Add SARVAM_API_KEY to Zo secrets at Settings > Advanced

Changes

• Added skills/sarvam-ai/ folder with SKILL.md and scripts/
• 4 comprehensive Python scripts covering all Sarvam APIs
• Full documentation with usage examples
• Updated manifest.json with skill metadata

[skeletor-js]

Please clean up the packaging and resubmit.

• Put the skill in the correct registry structure. Right now the PR layout is not clean.
• Remove the stray SKILL.md.bak file.
• Revert the unrelated manifest.json churn and keep the diff scoped to the actual skill.
• Keep the setup instructions aligned with Zo Secrets. Do not drift into generic env-export patterns.
• Make sure the PR only includes the files required for this skill and nothing else.