Computers & IT (Non-Engg)

Hello Asif,
I understand and appreciate your interest in pursuing Masters of Computer Application (MCA) via distance learning. For college, kindly refer to the link below for more information:
https://goo.gl/E9veKk
I hope this answers your question to your satisfaction. If so, kindly upvote this answer. If you have any further questions, kindly revert.

BCA graduates are employed by small and medium size IT and ITES companies. In addition, business enterprise hires BCA graduates in their IT Departments and computer operations.
Large IT companies employ BCA graduates only in production or apps support roles. Employment opportunities for BCA graduates are less until they do a post-graduation degree such as MCA.

Talentedge and Jetking are the best options in Kolkata for hardware and networking courses.

Check out the link mentioned below for details:
http://studystall.blogspot.in/2012/04/defination-of-computer-its.html

You must complete additional certificate courses:
JAVA, Python, Web Programming and Software testing.

Check for Techno India Institute. Check the below link for more-
https://www.shiksha.com/it-software/colleges/bca-colleges-kolkata

Dear,
It is possible. Before starting you should have primary knowledge of computer hardware, basic knowledge of different topology through which computers are connected. you should know network Fundamentals like LAN, MAN, WAN. Have a primary idea on OSI layered architecture. Basic IP addressing scheme. It is not verify difficult. Collect a book on computer networking. Go through. Then, go for CCNA. I think if you have that sort keenness and you are sincere enough you must be succeeded.
Best wishes.