Diploma

Master degree is definitely good as this has a greater value and recognition.

Hello Sayed,
Diploma is a type of certificate awarded to a student who has completed a three year course in some branch of engineering after passing 10th exam. Degree (B.Tech/BE) is awarded by a university after completion of 4 year course for which eligibility is 12th.

Dear Gaurav,
I appreciate you firstly & yes, you can do B.Tech in any branch through distance mode education. For that, you will have to fill form any particular university provide distance B.Tech courses. Some universities are Karnataka Open State University, Jaipur University, etc.

The Diploma in Engineering is a skill oriented three year programs after 10th class to provide students with industry or job related engineering knowledge, scientific skills, computing & analysis, mathematical techniques, a sound knowledge of English to communicate in the field and ability to apply

Check out the link for details:
https://en.wikipedia.org/wiki/CCNA