Hello Nishant

Ultrasonography or sonography is a method in which high frequency spund waves can be heard so that it makes possible to diagnose interior problems in various parts of human body . These sound waves travel through a path in which they waves  are converted to films , it allows sonographers to see what is exactly happening inside the patient's body .

If you want to build a career in sonography then you have many options After completing class xii.

You can pursue bsc in radiology and imaging technology  .
you can also  go for ultrasound  diploma course
Diploma in radiology

For pursuing Diploma in radiology you must have passed class xii with physics, chemistry and biology with minimum 50% marks .

Duration of the Course is 6 months

Fees for the Course ranges from 42 k To 68 k

Bsc in radiology is a three years Course.  Eligibility is to have passed class xii with minimum 50% marks in physics, chemistry and biology .

Fees for the course is 50 k To 70 k per year .

Colleges offering radiology courses are

CMJ university , Shillong

Medical college , Bhopal

https://www.careers360.com/courses/articles/sonography-courses-after-12th-counar