Andaman and nicobar islands in bay of bengalĀ 
lakshadweep islands in arabian sea
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thank you very very much :)
thank you all for helping me ;)
its ok
Andaman and Nicobar in the south east and Lakshadweep south west are the major island group in India
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thanks :)
gr8 nice answer
wlcm and thank u :)