Yes, Blackberry DTEK60 does have 3.5 mm music jack.
DTEK60 is just 6.99 mm thick. It is actually a pretty slim device.
Yes, DTEK60 does have FM radio. Besides, it also supports live interent radio streaming.
No. Holster case for DTEK60 is not yet launched in India.
Yes, Blackberry DTEK60 does have quick charge.
The DTEK60 is probably the best all-around BlackBerry phone in quite some time, building on the progress made by the quirky BlackBerry Priv.
The DTEK60 is a fast, capable phone. Its focus on productivity and security will make business users quite happy.