@Pooja2, Captcha/re-captcha are made to prevent any robot activities. It doesn’t mean we cannot crack that but legally it is not allowed and good practice too. I would suggest you to keep this step for user. let the user enter the captcha manually. however if you still wanna try then there are a couple of websites available that provide such services. Refer below post.
ashokkarale
Anil_G
Yoichi
yangyq10
postwick
chandreshsinh.jadeja
aravindbalineni123
Parvathy
aya
PRASHANT_GABHANE