A guide for inter-terminal travel in Kolkata.
KOAA-SHM / SHM-KOAA:
For this journey , you have to first reach Howrah and then move to Shalimar. If you book a direct taxi for KOAA to SHM , it would be hasslefree but very very costly. One more thing can be done is opting Kolkata circular railway for Howrah (i.e alight at Barrabazaar and walk the Howrah bridge to reach Howrah jn.) Or else take a taxi for Shalimar to Howrah. Or else reach R G Kar Hospital Bus stop which is hardly 5-10...
more... min walk from KOAA. There you can get good amount of buses and taxis for howrah.
And From Howrah to Shalimar you can opt Prepaid taxi or santragachi bound EMU.