Diploma

Hi,
Yes, you can take admission in B.Tech by appearing in LEET exam of the respective university.
There are many colleges which offer lateral entry to Diploma students to complete their engineering. After Diploma, B.Tech is of 3-years.
And it has many benefits as compared to 12+ B.Tech.
I hope I've made

Hello Rudra,
Yes, you can take admission on the basis of LEET exam organized by the government. You need to score more than 50% marks in your qualifying exam for being eligible for admission.

Yes, you can but in that case, you will not be eligible for direct second-year entry (lateral entry) in B.Tech. You have to apply as fresher for BE/B.Tech.

Yes, you can definitely get admission in BE through open category as your Diploma percentage is good. Apart from some of the top colleges across the country which demands 75%, you will eligible for most of the colleges.

The fees for Diploma in civil engineering in IES College of Technology is 27,000 INR per year that is roughly around 81,000 for the entire course.

Yes, M S Ramaiah Polytechnic provide Diploma in electronics and communication engineering For details, check the link below:
https://www.shiksha.com/engineering/course/diploma-in-electronics-communication-engineering-m-s-ramaiah-polytechnic-s-r-nagar-bangalore-21901