form 15ca for foreign remittance

First you have to take 15CB from a practicing Chartered Accountant. 

Thereafter you should file 15CA according to nature of payment.

A. To be filled up if the remittance is chargeable to tax under the provisions of the Incometax Act,1961 and the remittance or the aggregate of such remittances, as the case may be, does not exceed five lakh rupees during the financial year

B. To be filled up if the remittance is chargeable to tax under the provisions of the Incometax Act,1961 and the remittance or the aggregate of such remittances, as the case may be, exceeds five lakh rupees during the financial year and an order certificate u/s 195(2)/ 195(3)/ 197 of Income-tax Act has been obtained from the Assessing Officer.

C. To be filled up if the remittance is chargeable to tax under the provisions of Income-tax Act, 1961 and the remittance or the aggregate of such remittances, as the case may be, exceeds five lakh rupees during the financial year and a certificate in Form No. 15CB from an accountant as defined in the Explanation below sub-section (2) of section 288 has been obtained.

D. To be filled up if the remittance is not chargeable to tax under the provisions of the Income-tax Act, 1961 {other than payments referred to in rule 37BB(3)} by the person referred to in rule 37BB(2).