Solution : https://service.sap.com/sap/support/notes/899086 (SAP Service marketplace login required)
Key words : 
company code dependent text selection, activate business transaction eventshave, activate country version india, multiple add-ons technically, tax procedure configurations refer, existing pre-customised client, country version india, multiple add-ons, technically conflict free, code page restrictions
Related Notes : 
       
| 998407 | Master note for Country Version India FAQs/ clarifications | 
| 950977 | Country Version India (CIN) Master note for SD FAQs | 
| 950976 | Country Version India (CIN) Master note for MM FAQs | 
| 655941 | WP-PI 6.00: SAP Enterprise Portal Plug-in | 
| 618616 | CIN 4.0A Installation - Country Install Program (O035) | 
| 604695 | FAQ: Country Version India (CIN) Budget / Legal Change | 
| 544472 | FAQ: Country Version India (CIN)- Data and Authorisations | 
| 544471 | FAQ: Country Version India (CIN)- Upgrade and Object Changes | 
| 532596 | FAQ: Country Version India (CIN)- Installation and SPs | 
| 532557 | FAQ: Country Version India (CIN) General queries | 
| 423476 | CIN40A along with other ADD-ON solutions | 
| 411079 | Post install/upgrade activities for CIN40A | 
| 409687 | Additions to upgrade to CIN 40A for 4.6C SR2 | 
| 407046 | CIN: Additions to new installation of CIN 40A on 4.6C SR2 | 
| 168202 | Copying CIN customization from client 000 | 
| 162594 | Missing Customizing entries | 
| 104387 | Transporting CIN customising from client 000 to reqd client. | 
| 81456 | CRTs for country version India (CIN) | 
| 53902 | Conflicts between Support Packages and add-ons |