Programming Languages

Hi Reshu,
I recommend you the book of Stephen Kochan, is called "Programming in Objective-C" is aimed for those persons who has none-to-little background in programming, Stephen introduces the language very nicely.
Another good one is the book of Jeff LaMarche, "Beginning iPhone 4 Development: Exploring the SDK", is also very good.
And of course, the book of Aaron Hillegas, is called "Objective-C programming" is from the Big Nerd Ranch series, it's a classic and well-know book to learn Objective-C in an efficient way.
Other than these books, if you still feel unprepared, here are some other books that are highly rated for the preparation of Objective C:
1. iOS Programming: The Big Nerd Ranch GuideThis book is great for iOS start-ups. The authors of this book Joe Conway and Aaron Hillegass explains through the essential concepts, tools and various technologies involved in iOS app development.
2. Programming in Objective-CObjective C has become the standard programming language for application development for both the iOS and Mac OS x platforms.
3. Tapworthy: Designing Great iPhone AppsThis book is for designing the best exceptional user experience for iOS apps. This book doesn't teach you how to develop apps with Objective C.
Feel Free to raise more questions.
All the best.

Hi Vishnu,
There are various courses related to Computer software and application it generally depends upon your taste of interest.
Some of the certification options are:
Java/J2EE - The server side software development of web is mostly done by this most secure language option. Most of the banks in India and abroad implement their web applications using Java/J2EE only.
.NET - This is among most popular languages which are direct counterparts of Java. These are mainly used for light weight application development on the server side and client side. .NET is also easy to master compared to the long Java Library.
The other options for the courses include, i am listing most prominent ones from job point of view:
Oracle/Mysql/DB2/DBA - This is one of the most reliable course options but you will not get any work of software development on its basis, yet you can continue doing it if you have interest in DBMS.
CCNA/MCSE - These networking certifications can employ you as a network engineer and again even in the recession period these were the most reliable career options, if not most exciting.
Here is the list of certification courses which one can pursue after completing their graduation:
SAP/ERP: The course is designed for aspirants who wish to make their career in the IT industry. This program enables Transparency for Management, One solution for better management, Cost control & lower working capital, Critical control & visibility of inventory, Effective utilization of recourses, To marry latest technology, Shun the geographical gap, Satisfy the customer with high expectation, To be competitive & for survival.
All the best