Hi Seema,
You need not be confused or panicked. Basically, there are two types of jobs associated with SAP in any organization. One is the implementation part, and the other one is the support function. Implementation means you have to develop the program for the organization, whereas support means it is already implemented, and you have to just work on it. Implementation is a vast job, and basically, companies look for experienced people. As already mentioned, Siemens is the certified trainer for the same, but it is very expensive (approximately Rs 3 L). Now, it depends on you how much you want to spend. Siemens trains you first and then lets you work on implementation projects under their guidance so that you gain implementation experience.
Apart from that, you can do a one-year course from C-DAC (Noida). Though it's not certified as the certification lies only with Siemens, it is a government institute, and the course fee is also approximately Rs 60,000, making it a good bargain as it also gives you live experiences. Many companies hire people from this institute because the faculties are themselves top honchos of SAP companies. It's overall a good deal.
Apart from this, there are many private institutes offering SAP courses at a cost of Rs 25,000 to Rs 30,000. These institutes are good for working people as they have flexible timings, and if you have good domain experience, then it helps you a lot. I am an HR professional with an experience of 3.5 years, and since I can't afford to leave my job, I am doing the course from such an institute in the evening hours and on Sundays. For Siemens or C-DAC, you need to devote full time.
SAP is very much in demand, be it in the implementation or support function. You can go for it without hesitation. It will help you in the future.
Hope you got your queries solved. You can ask me if you have any more.
Regards,
Amit Singh