how many imsi number a dual sim phone can have?

Question

As imsi number will be one even there r many msisdn numbers

Answer 1

Hi,

Dual SIM mobile should have two IMSI numbers, each for a SIM card.

TelephonyInfo telephonyInfo = TelephonyInfo.getInstance(this);
String imsiSIM1 = telephonyInfo.getImsiSIM1();
String imsiSIM2 = telephonyInfo.getImsiSIM2();

You may use the above code to get IMSIs respectively.

Edit 1:
By the way you can get TelephonyInfo.java here

Note: I have not tested the code! I hope it works.

Hope this helps.