Can I change my engineering stream during first year of b.tech degree course ??

Yes you can change your engineering stream in b.tech during only first year studies . B tech first year syllabus will be same for all stream of engineering. To change engineering stream you have to consults with your college administration..

Top engineering colleges in India :
Indian Institute of Technology, Delhi
Indian Institute of Technology, Kharagpur
Indian Institute of Technology (BHU), Varanasi
Birla Institute of Technology and Science, Pilani
Delhi Technological University
Indian Institute of Technology, Guwahati
Mody Institute of Technology and Science
National Institute of Technology, Tiruchirappalli
Indian School of Mines
Indian Institute of Technology, Bombay
Indian Institute of Technology, Kanpur
Indian Institute of Technology, Madras
College of Engineering, Guindy
Visvesvaraya National Institute of Technology
Birla Institute of Technology, Mesra
National Institute of Technology Karnataka
International Institute of Information Technology, Hyderabad
Veermata Jijabai Technological Institute
National Institute of Technology, Warangal
Netaji Subhas Institute of Technology
Indian Institute of Information Technology, Allahabad
P.S.G. College of Technology
National Institute of Technology, Rourkela
Indian Institute of Technology, Bhubaneswar
PEC University of Technology
College of Engineering, Pune
National Institute of Technology, Hamirpur
Harcourt Butler Technological Institute
Manipal Institute of Technology
Shri Mata Vaishno Devi University
Thadomal Shahani Engineering College
Motilal Nehru National Institute of Technology, Allahabad
Birsa Institute of Technology Sindri
Thapar University
University Institute of Engineering and Technology, Panjab University
Jamia Millia University,New Delhi
National Institute of Technology, Silchar
R.V. College of Engineering
Institute of Technology, Nirma University
P.E.S. Institute of Technology
National Institute of Engineering
University College of Engineering, Osmania University
SSN College of Engineering
Mepco Schlenk Engineering College
Chaitanya Bharathi Institute of Technology
Thiagarajar College of Engineering
Indian Institute of Technology, Jodhpur
Government College of Engineering, Amravati
Government College of Engineering, Amravati
Dwarkadas J. Sanghvi College of Engineering
Model Engineering College
P.E.S. College of Engineering
Dehradun Institute of Technology
Maharashtra Institute of Technology