In two instances tiger skins seized in Nepal were originated from India

In two case studies presented by Government of India to CITES Secretariat shows that one of the tiger skin seized in Nepal on January 2013 was originated from Pench Tiger Reserve, Madhya Pradesh and tiger skin seized in December 2015 at Sunsari, Nepal was originated from Corbett Tiger Reserve, Uttarakhand.
https://cites.org/sites/default/files/eng/com/sc/69/inf/E-SC69-Inf-34.pdf

Tiger skin seizure case accused acquitted by Juvenile Justice Board

Juvenile Justice Board of Nagpur had acquitted a person (case was registered under Wildlife Protection Act and IPC) who was arrested along with others in Nagpur Railway station, Maharashtra with 2 tiger skins and bones by CBI on November 2009. 

Wildlife trader got bail from Uttarakhand High Court

An illegal wildlife trader from Delhi who was convicted in a case of tiger skin and bones seizure registered at Ramnagar division in January 2009 managed to procure bail from Uttarakhand High Court during the pendency of criminal revision. Prior to this his conviction was upheld by Sessions court in August 2017.

In High Court counsel for the convict contended that the "Courts below erred in awarding the punishment as the role assigned to the revisionist was as simple as he was the purchaser of the alleged skin, which was never sent for FSL. It is contended that the revisionist could not be punished as same is barred by Section 30 and 26 of the Evidence Act. It is further contented the revisionist was on bail during trial as well as during pendency of appeal and he has never misused the bail granted to him."

Tiger skin and bones seized in Dehradun district, Uttarakhand

Special Task Force of Uttarakhand police arrested four people including a person from Dharchula with a tiger skin and approximate 25 kg tiger bones at Dehradun district of Uttarakhand on 15 May 2016.
http://www.dailypioneer.com/state-editions/dehradun/4-smugglers-held-with-tiger-pelt.html

Tiger skin seized in Chhattisgarh

Police officials arrested a person with a tiger skin in Kondagaon district of Chhattisgarh on 21 April 2016.
http://www.patrika.com/news/kondagaon/kondagaon-one-arrested-with-tiger-skin-1277332/

Tiger skin seized in West Bengal

West Bengal forest officials arrested four persons including a Bhutan national with a tiger skin and bones in Jalpaiguri district on 19 March 2016.
http://www.business-standard.com/video-gallery/general/four-arrested-for-smuggling-royal-bengal-tiger-s-skin-in-jalpaiguri-33546.htm

6 tiger skins and bones seized in Uttarakhand and Kerala

In two separate incidents skins and bones of 6 wild tigers were seized in Uttarakhand and Kerala on 14 March 2016. In Uttarakhand 5 tiger skins and 125 kg tiger bones were seized and one arrested at Haridwar district. In an another incident Kerala forest officials arrested four persons with a tiger skin in Thiruvananthapuram district.

http://timesofindia.indiatimes.com/city/dehradun/Is-Corbett-turning-into-poachers-den/articleshow/51399615.cms

http://www.thehindu.com/news/cities/Thiruvananthapuram/pelt-seized/article8354526.ece

Tiger skin and bones seized in Nepal

Nepal police arrested a person with a tiger skin and bones at Nawalparasi district on 25 January 2016.
http://sajhasabal.com/nawalparasi/news/nawalparsi/

Tiger skin seized in Kanker, Chhattisgarh

Forest officials arrested 4 persons with a tiger skin in Kanker district of Chhattisgarh on 7 January 2016.

Tiger skin seized in Chhattisgarh

Chhattisgarh police arrested a resident of Gondia district, Maharashtra with a tiger skin in Rajnandgaon district on 5 January 2016. Skin is suspected to be brought from Balaghat, Madhya Pradesh.

Tiger skin and bones seized in Nepal

Nepal police arrested a person with tiger skin and bones at Surkhet district on 2 November 2015.
http://kantipur.ekantipur.com/news/2015-11-02/20151102161605.html

Tiger skin and bones seized in Kailali district, Nepal

Nepal police seized a tiger skin and bones in Kailali district (a district bordering with India) and arrested a person on 17 October 2015.
http://thehimalayantimes.com/nepal/one-held-with-bengal-tiger-hides-and-bones

Two tiger skins and bones seized

In two separate incidents two tiger skins and bones seized in Madhya Pradesh and Assam on 13 October 2015. In Madhya Pradesh, skin of a tiger suspected to have killed in Satpura tiger reserve had seized by forest officials from a village in Chhindwara district. In Assam, forest officials of Kaziranga tiger reserve arrested two persons including a forest guard with a tiger skin and bones.
http://www.india.com/news/india/two-arrested-with-tiger-skin-in-assam-628978/ 
See the video of Assam incident: http://www.mid-day.com/videos/two-arrested-with-tiger-skin-in-assam/698726

Accused acquitted in biggest wildlife seizure case

In one of the biggest and widely discussed wildlife seizure case reported from India in 1993, the accused was acquitted by trial court on 29 May 2015. The case dated back to August and September 1993 in which a joint team of wildlife and police officials seized 8 tiger skins, around 400 kg tiger bones, 43 leopard skins, 3 clouded leopard skins, 128 otter skins and other wildlife articles in Delhi.

During the course of trial, accused Pema expired and accordingly proceedings against him were abated in July 2008 and accused Sansar Chand was discharged prior to his death on March 2010. The remaining one accused Mohammed Yakoob is now acquitted by court.

The court was critical on investigation officer and observed that act of him is not upto the mark. 

Tiger skin seized in Madhya Pradesh

Forest officials arrested three persons with a tiger skin in Betul district on 9 April 2015.

Tiger skin and bones seized in Nepal

Nepal Police arrested three persons, including an Indian national, in possession of endangered tiger’s skin and bones from Punarbas Municipality-8 in Kanchanpur district on 28 February 2015. Police nabbed the suspects while they were entering into Nepal with the animal parts they had brought from Sampurna Nagar, Lakhimpur Kheri district of Uttar Pradesh. This is the third major haul of smuggled parts of endangered tigers in the district in the past two months.
http://www.nepalmountainnews.com/cms/2015/03/01/tiger-hide-bone-smuggling-up-in-kanchanpur/

Tiger skin, bones seized in Dharchula and Chandrapur

Sashastra Seema Bal (SSB) seized a tiger skin and 4 kg tiger bones at Indo-Nepal border, Dharchula, Pithoragarh district of Uttarakhand on 17 February 2015, a citizen of Nepal has arrested.
http://www.amarujala.com/news/city/pithoragarh/pithoragarh-hindi-news/tigtiger-skin-bones-including-the-smuggler-arrested-hindi-news/

Maharashtra forest officials seized 19 kg of tiger bones at Chandrapur district on 17 February 2015, 1 arrested.
http://timesofindia.indiatimes.com/city/nagpur/Bones-piece-of-skin-of-freshly-poached-tiger-seized/articleshow/46279735.cms

Tiger skin seized in Madhya Pradesh

Madhya Pradesh forest officials arrested two persons with a tiger skin in Balaghat district on 24 January 2015.
http://naidunia.jagran.com/madhya-pradesh/balaghat-two-accused-arrested-with-tiger-skin-295233

One more Indian arrested in Nepal with tiger skin and bones

Nepal Police arrested a resident of Lakhimpur district in the Indian state of Uttar Pradesh, with a skin and around 19 kg bones of tiger from Belauri-1 in the Kanchanpur district on 19 January 2015 night. During the police interrogation, the Indian national informed that the seized parts were of a tiger that was poached in Pilibhit area in Uttar Pradesh. Last week also police seized an Indian with a hide and 18 kg bones of tiger from Dodhara, Kanchanpur that was also poached in Pilibhit.
http://www.ekantipur.com/2015/01/21/national/indian-man-held-with-endangered-tigers-hide-bones/400628.html

Indian arrested in Nepal with tiger skin and bones

A resident of Pilibhit district of Uttar Pradesh, India was arrested with a tiger skin and bones at Dodhara-Chadani municipality, Kanchanpur, Nepal on 16 January 2015.
http://www.thehimalayantimes.com/fullNews.php?headline=Indian+national+held+with+tiger+skin%26sbquo%3B+bones+&NewsID=441310