IT Depreciation

+al depn is allowed for P&M used for manufacturing and it shud be new.. As u were charging depn under SLM method, i think depn wont b allowed.. For better clarification refer to section 32

Going by s.32,  the addl 20%  depre is  eligibile for an assessee engaged in the business of manufacture or production of  any article or thing.  There is no bar for SLM method of depre.

Only question to be answered is whether electricity generation is a manufacture .