Hello Sir,
It is advised to please follow up with your application. In case for any reason you are not interested in holding the number then please get it cancelled or else you may receive a notice from the Service Tax Department based on Best Judgement. Which will in turn cause you more hardship and cost.
Trust this clarifies your query.
Feel free to call / get back in case of further clarifications.
Thanking You.
Regards,
Rohit R Sharma
BCOM, ACA, LLB-GEN, CERT. FAFP