Yes exactly, it will be very costly to file the same again and again.
We may pass a resolution like this (i found it somewhere over internet);
RESOLVED THAT pursuant to Section 179(3)(d) and other applicable provisions, if any, of the Companies Act, 2013 or subject to such modification and re-enactment thereof, consent of the Board of directors of the Company be and is hereby accorded for obtaining unsecured loan not exceeding Rs._________(Amount in words) from (Name of the Director), Rs. _________ (Amount in words) from (Name of the Director) in one or more tranches, and on such other terms and conditions as may be mutually agreed between the both parties".
But one more point which is to be kept in mind is, if at any time company wants to convert these unsecured loans to equity shares, then compliance of Section 62(3) is to be made while drafting this resolution.
If any one dealt with this situation pls give their valuable suggestions.