Re: Spending night at inlaws
No, Dulhaniya, i am referring to staying over at night and yes in these communities it is a norm, but norm not as in you could go and stay over every other night but it is perfectly normal staying over at night on happy occasions in the presence of your in-laws and tens of other relatives 
however, since you do not seem to be comfortable with the idea then you should take the middle road in this situation, like be there till late night and when all the fun hungama finishes go back to your own place and then come back to your in-laws next morning. although i am sure your in-laws would say to you that " why bother going to ur place for 5-6 hours, lets just stay here".