I will have to post this link once again then i guess..
Virtual Bangladesh : History : Economic Exploitation
It says that:
East Pakistan blame three instruments of the Central Government for their plight:-
Pakistan's scant investible resources, plus foreign aid, are directed unduly to the development of West Pakistan - to the
comparative neglect of East Pakistan
In particular,
East Pakistan's foreign trade earning are diverted to finance imports for West Pakistan.
Economic policy favors West Pakistan at the expense of East Pakistan. Specifically,
tariffs, import controls, and industrial licensing compel East Pakistan to purchase commodities from West Pakistan which, but for the controls could be obtained more cheaply in world markets.
From 1948-60 East Pakistan's export earnings had been 70%, but its share of import earnings was only 25%.
A sizable net transfer of resources had taken place from East to West Pakistan. The report states that, if allowance is made for the undervaluation of foreign exchange in terms of Pakistan's domestic currency, the total transfer from East to West Pakistan over the period 1948/49-1968/69 was Rs 31,000,000,000 [1971 terms]. Using the then exchange rate of Rs 11.90 to the dollar, this worked out to 2.6 thousand million dollars in 1971 terms.
Now coming to mathematics...
If the export earnings of East Pakistan was to the tune of 70% of the total;
Budget allocation(starting at 35% and going to 45%) even to the tune of 45% does not make much a good sales pitch...
If they were earning 70%; budget allocation ideally should have been ~ 70%...
But that is not actually possible nor it is a good thing to do...
It will be like asking 6% of total budgetary allocation for Mumbai itself as it contributes ~6% to India's' GDP...
And cities like mine will never get a new road ever..!!
Still I dont think E. Pakistan ever got its fair share...
Jahan aag hai wahin se dhua nikalta hai...