hi rajeev,
calculation of pf is as under:
from employees(individual) 12% of basic (u dudcted form tham) uppor limit is rs. 6500/=
from employers : 12% total basic (3.67% in a/c 1 & 8.33% in a/c 10), in a/c 2 - 1.1% of total basic (as admn sircharges), in a/c 21 - 0.5% of total basic (in insurance), in a/c 22
admn charge is 0.01% of total basic ( not less than rs 7/=)
for pf monthly return : form 12a, form 5 & 10 with 3rd copy of treasury challan