Friends, Q1(a) was simple:
Calculation of Exepmtion u/s 10AA:
Profit of Unit X: 63
Add: Depreciation as charged: (9*180/300): 5.4
Less: Depreciation as per IT Rules*: (7.65*180/300): 4.59
Eligible Profit for Section 10AA: 63.81
Export Turnover of Unit X: 120-20: 100
Total Turnover of Unit X: 180
Exemption u/s 10AA: (63.81*100/180): 35.45
Calculation of Total Income:
Net Profit (63-35.45+36): 63.55
Add: Depreciation as charged: 9
Less: Depreciation as per IT Rules*: 7.65
Total Income: 64.90
(Basis of apportionment of depreciation to units according to sales is debatable).
*Actual Cost of machinery: (9/0.15): 60
Less: WDV Depreciation (assume deprecaition rate as IT Rules-15%) of 1st year: 9
Less: WDV Depreciation (assume deprecaition rate as IT Rules-15%) of 2nd year: 7.65
(Question was based on November 2003 question, All figures in Rs. Lacs)