Along with a stupendous view of the Seven Sisters, you'll also be able to have a look at the plains of Bangladesh right across the view point. I'd advise you to go during or just after the monsoons to completely enjoy the experience.
On our way to the hotel we hopped in and out of our cab though it was drizzling it didn't hinder our spirit to explore and our next stop was Nohsngithiang falls. One of the tallest waterfalls in India as the water falls from a height of 1033ft. The monsoon season made the water fall at full spate and we could see it from a distance, mesmerised with the beauty in 'abode of clouds'. Do stop for a perfect backdrop for a photograph session.
Bad timing! we couldn't see the seven sister water falls as the view point was covered with heavy mist. However, we really enjoyed the weather!
(Oct 12)I went as Heprit suggested, Eco park, Mawsmai caves and then Nohsngithiang (seven sisters waterfall), all walkable. Eco park is fine with some good views of valleys. The missing falls is interesting though, few streams disappearing into the dark abyss of a pit. Mawsmai cave was brief with hardly any prominent stalactites/stalagmites. It sort of ends within a mere 150m stretch. Must try here, Jadoh rice (mustard flavor) with tungtap chutney (fish chutney). Arwah caves, suggested by Heprit is a better alternative which have well preserved fossils. I wish to explore it next time. Nohsngithiang waterfalls was a beautiful sight, playing hide n seek behind the mist but not all seven streams showed up, probably not the best season as in monsoons when all the streams cascade in their full. The road on to the left towards the polo orchid resort provides a better viewpoint. The main road running parallel to this resort will take you to a viewpoint from where you can see vast expanse of lands that is Bangladesh. Done with the sight seeing for today, I returned back to Guwahati to catch late night train for Dimapur.