Write some Software

I need an accounting software for Indian Market. Technical Details - 1. Multi User, SQL Based, Fast 2. Built on ASP.NET / VB.NET SQL Server or PHP/MySQL 3. Supports Win XP, Vista, 7, 8 and 8.1 4. Multi Company, Should allow one user to create and manage accounts and inventory for more than one company 5. Custom Financial Year (Jan-Dec or Apr-Mar) 6. Good GUI / User Friendly, Entry Validation 7. Complete Source Codes, No DLLs 8. You can use Third Party DLLs for PDF and other support 9. Reporting - PDF, Microsoft Reporting Tool, Crystal Reports (Least Preffered) 10. Should allow Editing Entries (ledger, bank), or should lock edit mode (No Edits) 11. Allows Printer Settings Functional Specifications - 1. Accounting & Book Keeping (Ledger, Groups, Trial Balance, Balance Sheet, Profit & Loss, Bank Book, Bank Accounts, Cash Book, Petty Cash, BRS, Reports, etc) 2. Stock & Inventory (Raw Material, Custom Measuring, Ware House, Stock Transfer, Stock Returns, Material Management) 3. Taxation - VAT, Sales Tax, Service Tax, Excise, Other Tax, Reports 4. Contacts Management - Supplier, Buyer, Debtor, Creditor etc 5. Backup & Restore - Should export data to xml/csv/zip or similar file and restore the same. Do not try to sell me any open source product, bid reasonably and include all your features, let me know if you can show a demo (web or desktop exe) Happy Bidding