diff --git a/gkcore/models/gkdb.py b/gkcore/models/gkdb.py
index 04a7f1db778d3f673453df8bf131e9fdf575479b..db7d9af9b987f91d22c8c8ba2e7916168e5693fc 100644
--- a/gkcore/models/gkdb.py
+++ b/gkcore/models/gkdb.py
@@ -291,9 +291,10 @@ Note that invoice is connected to a voucher.
 So the accounting part is thus connected with stock movement of that cost.
 A new json field called freeqty.
 Consignee (shipped to) is a json field which has name , address, state, statecode,gstin as keys along with its value.
-Bankdetails is a dictionary will have bankname,accountno. and ifsccode.
+Bankdetails is a dictionary will have bankname,accountno., branchname and ifsccode.
 taxstate is a destination sate.
-sourcestate is source state from where invoice is initiated
+sourcestate is source state from where invoice is initiated.
+Structure of a tax field is {productcode:taxrate}
 """
 invoice = Table('invoice',metadata,
     Column('invid',Integer,primary_key=True),
@@ -304,6 +305,7 @@ invoice = Table('invoice',metadata,
     Column('issuername', UnicodeText),
     Column('designation', UnicodeText),
     Column('tax', JSONB),
+    Column('cess',JSONB),
     Column('amountpaid',Numeric(13,2),default=0.00),
     Column('invoicetotal', Numeric(13,2),nullable=False),
     Column('icflag',Integer,default=9),
diff --git a/gkcore/views/api_organisation.py b/gkcore/views/api_organisation.py
index 95a5817e0bf05ac5b9b0b5d563418a5bcfac6043..10a8900601330b1f0394b546ffee519836610447 100644
--- a/gkcore/views/api_organisation.py
+++ b/gkcore/views/api_organisation.py
@@ -23,7 +23,7 @@ Contributors:
 "Krishnakant Mane" <kk@gmail.com>
 "Ishan Masdekar " <imasdekar@dff.org.in>
 "Navin Karkera" <navin@dff.org.in>
-'Prajkta Patkar'<prajkta@dff.org.in>
+'Prajkta Patkar'<prajakta@dff.org.in>
 'Reshma Bhatwadekar'<bhatawadekar1reshma@gmail.com>
 """
 
@@ -60,6 +60,7 @@ class api_organisation(object):
         """
         self.con = eng.connect()
         try:
+            self.con.execute(select([func.count(gkdb.invoice.c.cess)]))
             self.con.execute(select([func.count(gkdb.state.c.statecode)]))
             self.con.execute(select([func.count(gkdb.invoice.c.reversecharge)]))
             self.con.execute(select(gkdb.organisation.c.gstin))
@@ -78,6 +79,7 @@ class api_organisation(object):
             self.con.execute(select(gkdb.organisation.c.billflag))
             self.con.execute(select([func.count(gkdb.billwise.c.billid)]))
         except:
+            self.con.execute("alter table invoice add cess jsonb")
             self.con.execute("alter table product add UNIQUE(productdesc,orgcode)")
             self.con.execute("create table state( statecode integer,statename text,primary key (statecode))")
             self.con.execute("insert into state( statecode, statename)values(1, 'Jammu and Kashmir')")