There are many courses which you can pursue with CA. However the choice and decision depends upon many factors like interest, cost, duration, time devotion etc. depending upon your circumstances.
Some of them are >
CS, ICWA, CFA (US), CMA(UK). these are Long term duration with ore than 3 years.
CPA, CFP, CIA, CISA atc. are medium term duration depending upon the devotion and your level of knowledge.
Further there are many certification Programmes like, CIFRS, NCFM, CMA (US) etc.
Select the depending upon your field of interest and personal circumstances.
The combination of CA+CFA is good in case the interest is for Investment banking and Portfolio Management.
The combination of CA+CPA is good , in case interest is in Accounting and Auditing field.
The Combination of CA+CS is also good.
The combination of CA+CS is helpful in long run to grab top opportunities at management level. CS is a very good combination with CA as far as course content and understanding the corporate environment is concerned.
If you are having CS qualification then you can easily and confidently handle or administer secretarial work/department along with the account work/finance department.
Also focus on the opinion below:
In today’s time ICAI membership only is not enough. To improve the chances of getting quick job after receiving ICAI membership following practical things are necessary to be considered:
1. More than basic understanding of accounting. 2. Good knowledge of ERP, Tally, SAP, IFRS, MIS working environment. 3. Understanding of working as a finance part. 4. Good and practical knowledge of Taxation.
My best wishes are always with you. Be humble and be successful.