hello aarushi, First of all u will have to speak regularly with any person. YOur main target should be "speak without thinking". As u will speak continueosly u must try to add new words in ur sentences. Side by side you should work on ur grammer so that u can speak effectively with confidence. "RATTAFICATION" will also help u to get fluency. try to thoroughstudy of english newspaper.
BEST OF LUCK
1ST OF ALL I WOULD SAY SPEAKING IN ENGLISH IS NOT A BIG DEAL THA ONLY TING YOU HAVE TO DO IS START SPEAKING WHATEVER COMES IN YOUR MIND NO MATTER IS IT RIGHT OR NOT UNLESS YOU SPEAK YOU CANT THINK OF STEPPING FORWARD
IT IOS NOT A ONE DAY LEARNING IT COMES BY PERVERANCE