Microsoft Certification (Be a MCP(Microsoft Certified Professional)
(1) Microsoft Certified Technology Specialist (MCTS) (Specialist Series)
MCTS: .NET Framework 3.5 ASP .NET Applications
two papers-
1- Exam 70-536 Microsoft .NET Framework - Application Development Foundation

2- Exam 70-562 Microsoft .NET Framework 3.5, ASP.NET Application Development

(2) Microsoft Certified Professional Developer (MCPD) (Professional Series)
ASP.NET Developer 3.5 on Visual Studio 2008


MCTS Prerequisite: TS: Microsoft .NET Framework – Application Development Foundation
Exam 70-536
MCTS Prerequisite: TS: Microsoft .NET Framework 3.5, ASP.NET Application Development
Exam 70-562
MCPD Requirement: PRO: Designing and Developing ASP.NET Applications Using the Microsoft .NET Framework 3.5
Exam 70-564

For more info please refer-http://www.microsoft.com/learning/en/us/certification/cert-overview.aspx#tab3