>>Can I go out with wife for shopping, restaurants, on beaches, visiting forts?
Yes you can. No problems with that.

>>Can women wears jeans & T-shirts or indian dress in public place?
Yes they can.

>>can women go out for shopping alone or is it safe?
Yes they can go shopping alone, Much safer than India.

>>Indian TV channels are available?
Yes, Pehla and Tata Sky

>>how safe for a couple(Husband - Wife) to go out in the late evening in Qatar?
Very Safe.

>>what about the crime rate in Qatar?
Very Low. Much lower than India.

>>If there is any restrictions on behaviour in public places. plaese give me some idea about it.
No restrictions on decent behavior.

>>Somebody are saying its not good living style here so come alone.
Do not believe them, Ask them to give the details and then decide.

HTH