SGE batch file not reading .bashrc and conda command not found

Question

I have multiple conda environments working fine. when I try to subit a job using qsub to SGE, the .bashrc file is not read. The batch script looks like:

#!/bin/bash
#$ -S /bin/bash
#$ -cwd
#$ -l h_cpu=48:00:00
#$ -l h_vmem=2048M
#$ -q pascal@pascal-[0123]-0[01234567]
## allocate the number of cores:
#$ -pe mpi 1
export OMP_NUM_THREADS=4

conda activate my_env
python ./test.py

I am getting the error: conda: Command not found. Also, it can't find bash commands like export.

source ~/.bashrc or source ~/.bash_profile does not help.

If I use qsub -V ...., the code somehow runs but it says

CommandNotFoundError: Your shell has not been properly configured to use 'conda activate'.
To initialize your shell, run

    $ conda init <SHELL_NAME>

Currently supported shells are:
  - bash
  - fish
  - tcsh
  - xonsh
  - zsh
  - powershell

See 'conda init --help' for more information and options.

IMPORTANT: You may need to close and restart your shell after running 'conda init'.

However, I do not want to use qsub -V because of some external reasons.

I am new to this cluster, so I am clueless. I just want to be able to choose freely between different conda enviroments in the batch script. Please help.

Edit 1: after seeing the comment

#!/bin/bash -l
#$ -cwd
#$ -l h_cpu=48:00:00
#$ -l h_vmem=2048M
#$ -q pascal@pascal-[0123]-0[01234567]
## allocate the number of cores:
#$ -pe mpi 1
setenv OMP_NUM_THREADS 1

conda activate my_env
python ./test.py

gives me conda: Command not found.