Depriciation problem

A assessee engaged in business of manufacture purchased plant and machinery on 01-04-2008 for Rs 500000 and installed it on 01-06-2010in a factroy . P& M was start production in 12-10-2010. determine 1)year of acquisition. 2)when put to use will be calculated 3) cal. dep n additional dep what would be its actual cost if it is an addition to block .....