for experianced people while getting admission in top
B-schools does the company in which you work maters.
I have heard that the wor experiance counts only if the
company is listed in b.s.e is it true

No that is absolutely wrong otherwise ppl from IBM, LG, Siemens and host of other MNCs cant get into IIMs.

:)

Now now, where did you hear that? What company you come from certainly does not matter, however it helps if your work experience is relevant.