Very Urgent ,Tax Query help me

Basic      12,285

HRA          4914

Coneveyance      800

Special Allowance 5321

medical Allowance  1250

Gross Salary           24750

Professional Tax        200

So i am paying 10000, and 15000 insuranse i,e 25000 under 80c

rebt paying 7000 per month , residence at hyderbad

can any one say how much is my taxable income.

i want to pay donation to charitable trust and how much i can donate to claim excemption and to which trust i can pay .please give me reply