Hello Ritesh,

Here are some tips from me to improve your english irrespective of the exams.

Think in English

Sometimes the difficult thing about English speaking isn’t the language itself, but how you think about it.If you think in your native language and then try to speak English, you’ll always have to translate between languages. Translating isn’t an easy thing to do! Even people fluent in two or more languages have trouble switching between languages.The solution is to think in English.You can do this anywhere, anytime. Try to use English when you’re thinking about your day, or when you’re trying to decide what food to order. Even try to use an English-to-English dictionary to look up words. That way you never have to use your native language and translate words. You’ll notice that when you think in English, it’s easier for you to speak in English.

Talk to Yourself

Whenever you’re at home (or alone somewhere else) you can improve English speaking with your favorite person: yourself.
If you’re already thinking in English, try speaking your thoughts out loud. Read out loud, too. Practice is practice, and even if you don’t have anyone to correct your mistakes, just the act of speaking out loud will help you become more comfortable speaking English.

Use a Mirror

Whenever you can, take a few minutes out of your day to stand in front of the mirror and speak. Choose a topic, set a timer for two or three minutes and just talk.
The point of this exercise is to watch your mouth, face and body language as you speak. It also makes you feel like you’re talking to someone, so you can pretend you’re having a discussion with a study buddy.
Talk for the full two or three minutes. Don’t stop! If you get stuck on a word you don’t know, try expressing your idea in a different way. You can always look up how to say that word after the two to three minutes end. This will definitely help you find out what kinds of words or sentences you have trouble with.

Focus on English Fluency, Not Grammar

When you speak in English, how often do you stop?
The more you stop, the less confident you sound and the less comfortable you become. Try the mirror exercise above, but challenge yourself to speak without stopping or stammering (taking pauses between your words) the entire time.
This might mean that your sentences won’t be grammatically perfect, and that’s okay! If you focus on speaking fluently instead of correctly, you’ll still be understood and you’ll sound better. You can fill in the correct grammar and word rules as you learn them better.

Try English Tongue Twisters

Tongue twisters are series of words that are difficult to say quickly. One example is: “The thirty-three thieves thought that they thrilled the throne throughout Thursday.” Try saying this a few times! It’s not easy.
Word games like this will help you find the right placement for your mouth and tongue, and can even help your pronunciation. You can find a list of great tongue twisters here.

Listen and Repeat

Do you watch TV shows or YouTube videos in English? Use them to improve your fluency. Choose a short part of a show and repeat it line by line. Try to match the tone, speed and even the accent (if you can). It doesn’t matter if you miss a few words, the important thing is to keep talking. Try to sound just like the native speakers on the show.

Try these out and it will help you a lot to boost your morale and become a fluent speaker.

Hope this answer helps and all the very best to you!