Hello Nilesh,

Yes, you can but after 4 years only  ( including one year of initial trainning ) .

As per notification of 2020- Selected candidates are required to execute an agreement and a Personal Indemnity Bond to serve DAE for at least three years after completion of Training. Indemnity Bond is for 6,78,000 for OCES TSOs and 13,58,000 for DGFS Fellows. No third party surety is required.

Hope it helps.

Good Luck !!