It seems Tata Projects is Unlisted.
Artson Engineering ( Listed ) is Tata Project's subsidiary. Artson Engineering share is Re. 1 paid.
General Warning : in Can be Injurious to Your WEALTH
Caution :The writer has personal/ family members' holdings in Artson Engineering , so please make suitable "provisions " for likely over optimism
( NB : All information given in good faith. Please recheck all facts including this information . No responsibility taken by this author / blog . )