ISBtarget
Hi buddy
I am planning to give my gmat again and still waiting for Interview call from ISB. Can i email them and ask for status so that i can book my gmat date given enough time for interview prep.
is it advisable
yes, surely you can get in touch with the isb for the status update. They usually confirm 7-10 days prior to the confirmed interview dates. Below are the tentative dates for various locations (source ISB site):
Following are the tentative interview dates in cycle-2:
City Dates
Delhi 04 - 10 January, 2010
Kolkata 15 - 17 January, 2010
Hyderabad & International 26 December, 2009 - 07 February, 2010
Based on these dates, you may get a call anytime. All the selection and ding mails are sent at the end and on the same date. So, in worst case, if one is not shortlisted for interview, ISB won't update the status till the end

Regarding 2nd attempt of GMAT, I'm not sure if isb would accept your new score in the half of the whole selection process. Check out with isb about this. Though surely these scores would be eligible for next yr.