Section 377: Kya Hai Yeh Dhundhla Doctrine?

Ye sab theory hai, ab kuch practical confusion hai. Section 377 mein kaha gya hai ki kisi bhi vyakti ko apne vyavsay ke dauran kisi bhi vishay mein dhoka kiya ja sakta hai, jiske ke karan unka vyavsay band kar deya ja sakta hai. Lekin isse kuch exceptions bhi hoti hain - jaise ki yadi dhoka karne wala vyakti apne apne vyavasay ke dauran koi majboori ke maamle mein dhoka kiya, to usey koi punishment na mil sakta hai. Lekin kya yeh sach meraa karna hai? Kyaa isse Section 306 ka koi sambandh hai?