Dear all thanks for reply
As per explanation 2 to clause (vii) of sub-section (1) of section 9 of Income Tax Act, 'fee for technical services means any consideration for the rendering of any managerial, technical or consultancy services (including the provisions of services of technical or other personnel) but does not include consideration for any construction, assembly, mining or like project undertaken by the recipient......'
I think in this case assembly is equivalent of dismantling & erection.
Dear Ashok - The bills are received in the name of 'dismantling, erection, commissioning', can I qualify them as Techincal Service.
Dear Ankit - Please refer the top para.
Dear Ritesh - I think that is because of provision under section 194C sub-section (3)
Dear Ashish - The invoices have already been received.