INTRODUCTION :
The Battle of Buxar was fought between The Forces under The Command of The British East India Company , led by Hector Munro , and The Combined Armies of Mir Qasim , Nawab of Bengal till 1763 ; Shuja – ud – Daulah , The Nawab of Awadh ; and The Mughal Emperor Shah Alam – II . The Battle was held in 22 October , 1764 at Buxar ( Now The Bihar State , India ) .
BACKGROUND :
v 
Mir  Qasim : He 
was  the  ablest 
among  all  The 
Successors  of  Nawab 
Alavardi  Khan . 
v 
Mir  Qasim , an 
efficient  and  strong 
ruler , determined  to  improve 
the  affairs  of 
the  state  and 
shifted  his  capital 
from  Murshidabad  to 
Munger  ( Bihar )  in 
1762 .
v 
He  realized 
the  importance  of  a  full 
treasury  and  an  efficient  army 
required  to  maintain 
his  independence .
v 
Mir  Qasim 
regarded  himself  as  an  independent 
ruler  which  was  a  problem 
for  the  British 
as  they  wanted 
him  to  be 
a  puppet  in 
their  hands .
v 
Tussle  between 
Mir  Qasim  and 
the  British : Due  to 
the   misuse  of 
the  Farman  of 
1717  by  the 
British  to  evade 
internal  custom  duties , Mir 
Qasim  took  the 
extreme  step  of 
abolishing  all  duties 
on  internal  trade 
and  benefitting  his 
own  subjects  by 
giving  them  the 
concession  that  the 
British  had  forcefully 
snatched . 
v 
This  was 
strongly  protested  by  the  British 
and  a  preferential 
treatment  over  other 
traders  was  demanded.
v 
These  conflicts 
over  transit  duty 
led  to  the 
outbreak  of  wars 
between  the  British 
and  Mir  Kasim 
in  1763  which 
resulted  in  British 
victories  at  Katwa , Murshidabad , Giria , Sooty  and 
Munger .
v Mir Kasim fled to Oudh ( Awadh ) and formed a confederacy with the Nawab of Awadh, Shuja – ud – daulah , and the Mughal Emperor , Shah Alam – II , with a view to recover Bengal from the British .
COURSE  OF  WAR
: 
In October 1764 , in a final attempt to oust the British from Bengal , the combined armies of Mir Kasim , the Nawab of Awadh and Shah Alam – II came together to fight against the former . The armies of Nawabs and the Mughal emperor were decisively defeated by the British forces under Major Hector Munro at Buxar .
THE  COMBATANTS 
AND  THEIR  ROLES 
OF  THE  BATTLE 
OF  BUXAR :
| Participants 
  of  Battle  of 
  Buxar | Role 
  in  the  Battle 
  of  Buxar | 
| Mir 
  Qasim – ( Administering 
  Bengal  in  place 
  of  Mir  Jafar – Nawab  of 
  Bengal ) | He 
  disliked  misuse  of 
  dastak , farmans  by  the 
  English , hence  tried  to 
  conspire  against  them 
  by  forming  an 
  alliance  with  Nawab 
  of  Awadh  and  Mughal 
  Emperor  Shah  Alam – II . | 
| Shuja – Ud – Daulah : Nawab  of 
  Awadh  ( Oudh ) | Was 
  a  part  of 
  a  confederacy  with 
  Mir  Qasim  and 
  Shah  Alam – II . | 
| Shah  Alam – II : Mughal  Emperor | He 
  wanted  to  overthrow 
  English  from  Bengal . | 
| Hector 
  Munro – British  Army  Major | He 
  led  the  battle 
  from  the  English 
  side . | 
| Robert 
  Clive | Signed 
  the  treaties  with Shuja – Ud – Daulah  and 
  Shah  Alam – II  after 
  winning  the  battle . | 
RESULT  AFTER 
THE  BATTLE :
v 
Mir 
Qasim , Shuja – Ud – Daula 
and  Shah  Alam – II 
lost  the  battle 
on  October 22 , 1764 . 
v 
Major 
Hector  Munro  won 
a  decisive  battle 
and  Robert  Clive 
had  a  major 
role  in  that . 
v 
English 
became  a  great 
power  in  Northern 
India . 
v 
After 
the  battle , Mir  Jafar 
was  reinstated  as 
the  Nawab  of 
Bengal  in  1763 . He 
agreed  to  hand 
over  the  districts 
of  Midnapore , Burdwan  and 
Chittagong  to  the 
British  for  the 
maintenance  of  their 
army .
v 
The 
British  were  also 
permitted  duty – free  trade 
in  Bengal , except  for  a  duty 
of  2%  on 
salt .
v 
Mir 
Jafar  died  in 
1765  and  was 
succeeded  by  his 
son  Najm – ud – Daulah . However
, the  real  power of 
administration  still  remained 
with  the  British .
v 
Najm – ud – Daulah  signed 
a  treaty  with 
the  Company  and 
became  a  titled pensioner  on  fifty – 
three  ( 53 )  lakhs 
of  rupees  per 
year  which  was 
reduced  with  every 
new  successor .
v 
In 
1772 , the  British  completely 
ended  the  pensions 
and  took  over 
the  direct  charge 
of  Bengal .