Mechanical Engineering

No, you don't need to give any examination. For details check the link below :
https://www.shiksha.com/b-tech/course/b-tech-lateral-entry-college-of-engineering-pune-shivaji-nagar-204728.

Lateral entry admission in German University for any Diploma holder in Engineering is quite difficult. Students studying for graduation degree in Engineering may seek lateral entry by credit transfer. You are advised to do B.Tech lateral entry in India and then go for MS in German Universities.

Eligibility
In order to be eligible for a Bachelors degree for Zoology, the candidate needs to pass the higher secondary education or 10+2 from a recognized board with Biology, Physics, Chemistry and Mathematics. The duration of the Bachelors course is three years.
In order to be eligible for a Masters Course in Zoology, the candidate needs to have completed their Bachelors course with 50 per cent or above. The duration of the Masters course is two years.

Hi
I suggest you to retake IELTS first or check with various universities for bridge courses in English.Canada will be challenging but you can check University of Alberta, University of Windsor etc.You will have many options in Australia such as RMIT, UTS, etc.

Hi, Canada is one of the best places, however vey competitive hence you must check the entry requirements before applying.

Hi, generally around 8.2 and above is preferred but you can try applying,please see the entry requirements firstly on university websites. Your admission will also depend on your project work, research and publications, recommendation letters, personal statement etc, the overall profile will be taken into consideration.

Hello Mihir,
it's really great to see your dream of going abroad to study for PG. I feel either of the destinations is ok. You attempt for both and get into where ever feasible.

Hi Rushii, for lateral entry requirements you have to contact the University directly, they have their own credit transfer norms and accordingly you will be admitted.Please visit the college website and email them for the college specific requirement.

Please refer this link for an proper idea of the diploma courses.
https://www.google.co.in/url?sa=t&source=web&rct=j&url=https://www.shiksha.com/engineering/colleges/diploma-courses-bangalore&ved=0ahUKEwjos8Db9ZLWAhUHSY8KHdXECHMQFgiQATAE&usg=AFQjCNHmBIsYN2JupI-gIz8r-cHt1An6Dg