Hi arpita jain, it does not matter what u classify Tally software as (tanglible or intangible) under income tax act, depreciation on software is taken with computer hardware as 40%
In ur financials u can classify it as intangible asset (read indas 38 & 16) as "Tally" is not an integral/ necessary part of your computer hardware (ur computer works fine without tally) but that classification wont affect the depreciation rate under income tax act.