Hey Nakilala Uttama Sai,

If you want to participate in the second round counselling then you need to pay the registration fee once again and you need to participate in the counselling. As earlier you have already completed the doccument verification. The verification process is not required again. The second round counselling registration fee dates are not yet announced officially by the JNTU Hyderabad. But you can stay updated with the TS Eamcet 2019 counselling dates for second round here:

https://www.google.co.in/amp/s/engineering.careers360.com/articles/ts-eamcet-counselling/amp