Mechatronics Engineering

Dear Poornima,
Both the engineering branches are good and it will be very difficult to tell which branch will have more scope. However, to give you an sight, I am helping you with the some details regarding Information Technology, and for Mechatronics, I would request Dr.Goutam Chatterjee to share his expertise.
*Information Technology:
Information Technology (IT) is an engineering division, which concentrates on the study of utilizing computers and telecommunications in order to control, gather, store and circulate information. Both software and hardware sectors are parts of Information Technology.
Some of its specialized fields are: -
Computer Science
Networking and Communication
Databases and Information Systems
Embedded systems
Software Engineering
IT and Society
Geographic Information Science (GIS)
Eligibility for both:
For admission in a bachelor's degree, the candidate must have passed the higher secondary school certificate (10+2) examination with science subject such as physics, maths and chemistry. For IITs, It is mandatory to qualify in the Joint Entrance Examinations (J.E.E). The duration for this course is 4 years.
Hope this helps
Thanks
All The Best!

Mechatronics is a design process that includes a combination of mechanical engineering, electrical engineering, control engineering and computer engineering.It is a multidisciplinary field of engineering.Originally, mechatronics just included the combination of mechanics and electronics, hence the word is a combination of mechanics and electronics; however, as technical systems have become more and more complex the word has been "updated" during recent years to include more technical areas.
There are universities like MIT, LPU, SRM etc that are offering this degree. They offer direct admission as well as scholarships to meritorious students.
Good luck.