Good evening, Annie.
Thank you for your latest very interesting suggestions.
From my grandfather's service record, he is shown as being on the Indian unattached list from 1 April 1887 until 31 February 1888. This was the time he was attached to the Gloucesters. I should imagine to give him something to do, he was assigned to the Sind Volunteers as a Sergeant Major. Obviously in 1888 when they were re-designated and reformed his services were no longer required. His record then shows him being transferred back to the Worcesters on 1 Feb 1888, eventually returning to the 2nd Worcesters back in England.
I will access the Institution of Civil Engineers site another time as there are a few other items I would like to pursue since I have an interest in engineering history.
Thank you once again. At least it adds a little more to his service career.
Wyndham