diff --git a/database/models.py b/database/models.py
index 6d8ca53..3b992af 100644
--- a/database/models.py
+++ b/database/models.py
@@ -1,7 +1,8 @@
-from database import Base
-from sqlalchemy import Column, Integer, String, DateTime, Text, Enum, text
+from sqlalchemy import Column, DateTime, Enum, ForeignKey, Integer, String, Text, text
 from sqlalchemy.sql import func
 
+from database import Base
+
 
 class Users(Base):
     __tablename__ = "users"
@@ -15,7 +16,7 @@ class Users(Base):
     gender = Column(Integer)
     mobile = Column(String(255))
     user_image = Column(String(255))
-    city_id = Column(Integer)
+    city_id = Column(Integer, ForeignKey("cities.id"))
     user_type = Column(Integer)
     otp = Column(String(255))
     otp_valid_time = Column(DateTime)
@@ -88,11 +89,11 @@ class Games(Base):
     date_time = Column(DateTime)
     price = Column(String(100))
     description = Column(Text)
-    user_id = Column(Integer)
+    user_id = Column(Integer, ForeignKey("users.id"))
     gender = Column(Enum("1", "2", "3"))
-    city_id = Column(Integer)
-    venue_id = Column(Integer)
-    sports_id = Column(Integer)
+    city_id = Column(Integer, ForeignKey("cities.id"))
+    venue_id = Column(Integer, ForeignKey("venues.id"))
+    sports_id = Column(Integer, ForeignKey("sports.id"))
     no_of_player = Column(Integer)
     min_player = Column(Integer)
     already_player = Column(Integer)
@@ -147,8 +148,8 @@ class Payments(Base):
     __tablename__ = "payments"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    user_id = Column(Integer)
-    game_id = Column(Integer)
+    user_id = Column(Integer, ForeignKey("users.id"))
+    game_id = Column(Integer, ForeignKey("games.id"))
     amount = Column(Integer)
     token = Column(String(100))
     charge_id = Column(String(200))
@@ -192,8 +193,8 @@ class PlayerAvailabilities(Base):
     __tablename__ = "player_availabilities"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    game_id = Column(Integer)
-    player_id = Column(Integer)
+    game_id = Column(Integer, ForeignKey("games.id"))
+    player_id = Column(Integer, ForeignKey("users.id"))
     status = Column(Integer)
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
@@ -210,8 +211,8 @@ class PlayerCancelGames(Base):
     __tablename__ = "player_cancel_games"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    player_id = Column(Integer)
-    game_id = Column(Integer)
+    player_id = Column(Integer, ForeignKey("users.id"))
+    game_id = Column(Integer, ForeignKey("games.id"))
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
 
@@ -226,8 +227,8 @@ class PurchaseGames(Base):
     __tablename__ = "purchase_games"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    game_id = Column(Integer)
-    user_id = Column(Integer)
+    game_id = Column(Integer, ForeignKey("games.id"))
+    user_id = Column(Integer, ForeignKey("users.id"))
     pay_mode = Column(Integer)
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
@@ -262,9 +263,9 @@ class Teams(Base):
     __tablename__ = "teams"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    user_id = Column(Integer)
+    user_id = Column(Integer, ForeignKey("users_id"))
     team_id = Column(Enum("1", "2"))
-    game_id = Column(Integer)
+    game_id = Column(Integer, ForeignKey("games_id"))
     status = Column(Integer)
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
@@ -282,9 +283,9 @@ class UserRatings(Base):
     __tablename__ = "user_ratings"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    game_id = Column(Integer)
-    user_id = Column(Integer)
-    player_id = Column(Integer)
+    game_id = Column(Integer, ForeignKey("games_id"))
+    user_id = Column(Integer, ForeignKey("users_id"))
+    player_id = Column(Integer, ForeignKey("users_id"))
     rating = Column(String(100))
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
@@ -302,8 +303,8 @@ class VenueImages(Base):
     __tablename__ = "venue_images"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    venue_id = Column(Integer)
-    user_id = Column(Integer)
+    venue_id = Column(Integer, ForeignKey("venues_id"))
+    user_id = Column(Integer, ForeignKey("users_id"))
     image = Column(String(255))
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
@@ -320,12 +321,12 @@ class Venues(Base):
     __tablename__ = "venues"
 
     id = Column(Integer, primary_key=True, autoincrement=True)
-    user_id = Column(Integer)
+    user_id = Column(Integer, ForeignKey("users_id"))
     address = Column(Text)
     latitude = Column(String(100))
     longitude = Column(String(100))
     name = Column(String(100))
-    sports_id = Column(Integer)
+    sports_id = Column(Integer, ForeignKey("sports_id"))
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())
 
@@ -345,7 +346,7 @@ class ViewNews(Base):
 
     id = Column(Integer, primary_key=True, autoincrement=True)
     news_id = Column(Integer)
-    user_id = Column(Integer)
+    user_id = Column(Integer, ForeignKey("users_id"))
     created = Column(DateTime, nullable=False, server_default=func.now())
     updated = Column(DateTime, nullable=True, onupdate=func.now())