diff --git a/streamlit_app.py b/streamlit_app.py
index 3a8699f..7341678 100644
--- a/streamlit_app.py
+++ b/streamlit_app.py
@@ -1,5 +1,86 @@
+import google.generativeai as genai
 import streamlit as st
 
-st.title('🎈 App Name')
+# --- 1. SECURE API KEY CONFIGURATION ---
+# Use Streamlit's secrets management for the API key
+try:
+    genai.configure(api_key="AIzaSyBiv57ARkWPaETtcRO9uIvH5-5u_4akDtQ")
+except Exception as e:
+    st.error("API Key not found or invalid. Please add it to your Streamlit secrets.")
+    st.stop()
 
-st.write('Hello world!')
+
+# --- 2. SYSTEM INSTRUCTION FOR SPECIALIZATION ---
+# This is the core instruction that customizes the chatbot's behavior.
+# It defines the chatbot's persona, its limited scope of knowledge, and the exact refusal message.
+system_instruction = (
+    "You are a specialized AI assistant named 'Aushadi Veda'. "
+    "Your sole purpose is to provide medicinal information exclusively about the following systems: "
+    "Ayurveda, Yoga, Homeopathy, Siddha, and Unani. "
+    "You can answer questions about medicinal plants, herbs, remedies, and principles ONLY within these systems. "
+    "If a user asks about anything outside of these specific domains (such as allopathic medicine, modern drugs, general knowledge, chemistry, or any other topic), "
+    "you MUST respond with the exact phrase: "
+    "'I suggest this types details medicials information only ayurvedic or yoga, hameopathy ,siddha, unani' "
+    "and nothing else. Do not apologize or explain further."
+)
+
+
+# --- 3. MODEL AND GENERATION CONFIGURATION ---
+generation_config = {
+    "temperature": 1, # Slightly lower for more factual responses
+    "top_p": 1,
+    "top_k": 100,
+    "max_output_tokens": 819200, # Increased for potentially detailed answers
+    "response_mime_type": "text/plain",
+}
+
+model = genai.GenerativeModel(
+    model_name="gemini-1.5-flash",
+    generation_config=generation_config,
+    system_instruction=system_instruction, # Applying the custom rules here
+)
+
+
+# --- 4. STREAMLIT UI SETUP ---
+st.set_page_config(page_title="Aushadi Veda", page_icon="🌿")
+st.title("🌿 Aushadi Veda Chatbot 🌿")
+
+# Sidebar
+with st.sidebar:
+    st.header("Aushadi Veda", divider="rainbow")
+    st.write("Welcome! This AI assistant provides information exclusively on Ayurveda, Yoga, Homeopathy, Siddha, and Unani.")
+    st.write("Ask about medicinal plants, herbs, and traditional remedies.")
+
+# Initialize chat history in session state if it doesn't exist
+if "messages" not in st.session_state:
+    st.session_state.messages = []
+if "chat_session" not in st.session_state:
+    # Start the chat session with an empty history
+    st.session_state.chat_session = model.start_chat(history=[])
+
+# Display previous conversation messages
+for message in st.session_state.messages:
+    with st.chat_message(message["role"]):
+        st.markdown(message["content"])
+
+# Input area for the user
+if prompt := st.chat_input("Ask about an Ayurvedic plant or home remedy..."):
+    # Display user message in chat
+    with st.chat_message("user"):
+        st.markdown(prompt)
+    # Add user message to session state
+    st.session_state.messages.append({"role": "user", "content": prompt})
+
+    try:
+        # Send the message to the model and get a response
+        response = st.session_state.chat_session.send_message(prompt)
+        model_response = response.text
+
+        # Display assistant response in chat
+        with st.chat_message("assistant"):
+            st.markdown(model_response)
+        # Add assistant response to session state
+        st.session_state.messages.append({"role": "assistant", "content": model_response})
+
+    except Exception as e:
+        st.error(f"An error occurred: {e}")